The question of which came first, the chicken or the egg, has puzzled people for centuries. But scientists may have finally solved the mystery. Nature possessed the tools to create eggs long before it made chickens, according to a new study.
It is believed the first life forms to appear on Earth were composed of a single cell, evolving over time to become more complex. But the process of how that happened is not well understood.
To look into this, a team from the University of Geneva studied Chromosphaera perkinsii, a single-celled species that was discovered in 2017 in marine sediments around Hawaii. It separated from the animal evolutionary line more than a billion years ago, making it a good case study to probe the evolutionary process that led to multicellularity – or life forms made of multiple cells.
The scientists discovered that Chromosphaera perkinsii, once they reach their maximum size, divide without growing any further – forming multicellular colonies with a three-dimensional structure that looks similar to the early stages of animal embryonic development.
That means embryonic development might have existed before the evolution of animals, meaning the egg came before the chicken, they say.
These colonies persist for around a third of their life cycle and included at least two different cell types, which scientists describe as a “surprising phenomenon” for the type of organism. That suggests the process governing complex multicellular development was already present more than a billion years ago, the researchers said.
“It’s fascinating, a species discovered very recently allows us to go back in time more than a billion years,” said Marine Olivetta, a laboratory technician at the Department of Biochemistry in the Unige Faculty of Science and first author of the study.
She said the study demonstrates that either the principle of embryonic development existed before animals, or multicellular development mechanisms evolved separately in C. perkinsii.
‘‘Although C. perkinsii is a unicellular species, this behaviour shows that multicellular co-ordination and differentiation processes are already present in the species, well before the first animals appeared on Earth’’, said Omaya Dudin, who led the research.
TUESDAY'S ORDER OF PLAY
Centre Court
Starting at 2pm:
Elina Svitolina (UKR) [3] v Jennifer Brady (USA)
Anastasia Pavlyuchenkova (RUS) v Belinda Bencic (SUI [4]
Not before 7pm:
Sofia Kenin (USA) [5] v Elena Rybakina (KAZ)
Maria Sakkari (GRE) v Aryna Sabalenka (BLR) [7]
Court One
Starting at midday:
Karolina Muchova (CZE) v Katerina Siniakova (CZE)
Kristina Mladenovic (FRA) v Aliaksandra Sasnovich (BLR)
Veronika Kudermetova (RUS) v Dayana Yastermska (UKR)
Petra Martic (CRO) [8] v Su-Wei Hsieh (TPE)
Sorana Cirstea (ROU) v Anett Kontaveit (EST)
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Mina Al Oraibi: Air strike casts a long shadow over the decade ahead
Jack Moore: Why the assassination is such a monumental gamble
Matthew Levitt: Iran retains its ability to launch terror attacks
Damien McElroy: A CEO tasked with spreading Iran's influence
Simon Waldman: Cautious Israel keeping a low profile
Kareem Shaheen on Canada
World Mental Health Day
Star%20Wars%3A%20Ahsoka%20
Towering concerns
More from this package
The burning issue
The internal combustion engine is facing a watershed moment – major manufacturer Volvo is to stop producing petroleum-powered vehicles by 2021 and countries in Europe, including the UK, have vowed to ban their sale before 2040. The National takes a look at the story of one of the most successful technologies of the last 100 years and how it has impacted life in the UAE.
Read part three: the age of the electric vehicle begins
Read part two: how climate change drove the race for an alternative
Read part one: how cars came to the UAE
Plastic tipping points
• Remittance charges will be tackled by blockchain
• UAE's monumental and risky Mars Mission to inspire future generations, says minister
• Could the UAE drive India's economy?
• News has a bright future and the UAE is at the heart of it
• Architecture is over - here's cybertecture
• The National announces Future of News journalism competition
• Round up: Experts share their visions of the world to come
Tomorrow 2021
More on Quran memorisation:
While you're here
More on Afghanistan
Sulaiman Hakemy: 'Afghan' is now a globalised identity, whether the Taliban likes it or not
Editorial: The US-Taliban deal is only the first step to peace
Ken Hedricks: The Afghan scorpion farmer harvesting valuable venom for international buyers
Sulaiman Hakemy: Afghanistan's election results are finally released, but leadership remains overdue
The five pillars of Islam
1.
2.
3.
4.
5.
The burning issue
The internal combustion engine is facing a watershed moment – major manufacturer Volvo is to stop producing petroleum-powered vehicles by 2021 and countries in Europe, including the UK, have vowed to ban their sale before 2040. The National takes a look at the story of one of the most successful technologies of the last 100 years and how it has impacted life in the UAE.
Read part four: an affection for classic cars lives on
Read part three: the age of the electric vehicle begins
Read part two: how climate change drove the race for an alternative
School uniforms report
The national orchestra
World Mental Health Day
E-cigarettes report
Our commentary on Brexit
- Alistair Burt: Despite Brexit, Britain can remain a world power
- Con Coughlin: Choice of the British people will be vindicated
More from this story
MOUNTAINHEAD REVIEW
Starring: Ramy Youssef, Steve Carell, Jason Schwartzman
Director: Jesse Armstrong
Rating: 3.5/5
While you're here
INFO
Visit www.wtatennis.com for more information
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Directed by: Craig Gillespie
Starring: Emma Stone, Emma Thompson, Joel Fry
4/5
• Remittance charges will be tackled by blockchain
• UAE's monumental and risky Mars Mission to inspire future generations, says minister
• Could the UAE drive India's economy?
• News has a bright future and the UAE is at the heart of it
• Architecture is over - here's cybertecture
• The National announces Future of News journalism competition
• Round up: Experts share their visions of the world to come
Real estate tokenisation project
Dubai launched the pilot phase of its real estate tokenisation project last month.
The initiative focuses on converting real estate assets into digital tokens recorded on blockchain technology and helps in streamlining the process of buying, selling and investing, the Dubai Land Department said.
Dubai’s real estate tokenisation market is projected to reach Dh60 billion ($16.33 billion) by 2033, representing 7 per cent of the emirate’s total property transactions, according to the DLD.
The specs
Common to all models unless otherwise stated
Engine: 4-cylinder 2-litre T-GDi
0-100kph: 5.3 seconds (Elantra); 5.5 seconds (Kona); 6.1 seconds (Veloster)
Power: 276hp
Torque: 392Nm
Transmission: 6-Speed Manual/ 8-Speed Dual Clutch FWD
Price: TBC
The White Lotus: Season three
Creator: Mike White
Starring: Walton Goggins, Jason Isaacs, Natasha Rothwell
Rating: 4.5/5
Killing of Qassem Suleimani
National Editorial: Suleimani has been killed, now we must de-escalate
Jack Moore: Why the assassination is such a monumental gamble
Matthew Levitt: Iran retains its ability to launch terror attacks
Damien McElroy: A CEO tasked with spreading Iran's influence
Hussein Ibish: Trump's order on solid constitutional ground
Simon Waldman: Cautious Israel keeping a low profile
Killing of Qassem Suleimani
National Editorial: Suleimani has been killed, now we must de-escalate
Mina Al Oraibi: Air strike casts a long shadow over the decade ahead
Jack Moore: Why the assassination is such a monumental gamble
Matthew Levitt: Iran retains its ability to launch terror attacks
Damien McElroy: A CEO tasked with spreading Iran's influence
Hussein Ibish: Trump's order on solid constitutional ground
Rashmee Roshan Lall: Sound of silence in South Asia
More from this package
• Remittance charges will be tackled by blockchain
• UAE's monumental and risky Mars Mission to inspire future generations, says minister
• Could the UAE drive India's economy?
• News has a bright future and the UAE is at the heart of it
• Architecture is over - here's cybertecture
• The National announces Future of News journalism competition
• Round up: Experts share their visions of the world to come
World Mental Health Day
The burning issue
The internal combustion engine is facing a watershed moment – major manufacturer Volvo is to stop producing petroleum-powered vehicles by 2021 and countries in Europe, including the UK, have vowed to ban their sale before 2040. The National takes a look at the story of one of the most successful technologies of the last 100 years and how it has impacted life in the UAE.
Read part four: an affection for classic cars lives on
Read part three: the age of the electric vehicle begins
Read part one: how cars came to the UAE
Killing of Qassem Suleimani
National Editorial: Suleimani has been killed, now we must de-escalate
Mina Al Oraibi: Air strike casts a long shadow over the decade ahead
Matthew Levitt: Iran retains its ability to launch terror attacks
Damien McElroy: A CEO tasked with spreading Iran's influence
Hussein Ibish: Trump's order on solid constitutional ground
Simon Waldman: Cautious Israel keeping a low profile
Zayed Sustainability Prize
Plastic tipping point
The biog
Name: Salvador Toriano Jr
Age: 59
From: Laguna, The Philippines
Favourite dish: Seabass or Fish and Chips
Hobbies: When he’s not in the restaurant, he still likes to cook, along with walking and meeting up with friends.
TEAMS
EUROPE:
Justin Rose, Francesco Molinari, Tyrrell Hatton, Tommy Fleetwood, Jon Rahm, Rory McIlroy, Alex Noren, Thorbjorn Olesen, Paul Casey, Sergio Garcia, Ian Poulter, Henrik Stenson
USA:
Brooks Koepka, Justin Thomas, Dustin Johnson, Patrick Reed, Bubba Watson, Jordan Spieth, Rickie Fowler, Webb Simpson, Tiger Woods, Phil Mickelson, Bryson DeChambeau ( 1 TBC)
• Remittance charges will be tackled by blockchain
• UAE's monumental and risky Mars Mission to inspire future generations, says minister
• Could the UAE drive India's economy?
• News has a bright future and the UAE is at the heart of it
• Architecture is over - here's cybertecture
• The National announces Future of News journalism competition
• Round up: Experts share their visions of the world to come
More from this package
More on Quran memorisation:
On Women's Day
Dr Nawal Al-Hosany: Why more women should be on the frontlines of climate action
Shelina Janmohamed: Why shouldn't a spouse be compensated fairly for housework?
Samar Elmnhrawy: How companies in the Middle East can catch up on gender equality
Justin Thomas: Challenge the notion that 'men are from Mars, women are from Venus'
RoboCop%3A%20Rogue%20City
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The other virus: bigotry
Civil%20War
Transgender report
Our commentary on Brexit
- Alistair Burt: Despite Brexit, Britain can remain a world power
- Sam Williams: Departure is influenced by its sense of place
More from Neighbourhood Watch:
FIXTURES (all times UAE)
Sunday
Brescia v Lazio (3.30pm)
SPAL v Verona (6pm)
Genoa v Sassuolo (9pm)
AS Roma v Torino (11.45pm)
Monday
Bologna v Fiorentina (3.30pm)
AC Milan v Sampdoria (6pm)
Juventus v Cagliari (6pm)
Atalanta v Parma (6pm)
Lecce v Udinese (9pm)
Napoli v Inter Milan (11.45pm)
'HIJRAH%3A%20IN%20THE%20FOOTSTEPS%20OF%20THE%20PROPHET'
Kareem Shaheen on Canada
COMPANY%20PROFILE
Tomorrow 2021
Tomorrow 2021
War on waste
Why seagrass matters
- Carbon sink: Seagrass sequesters carbon up to 35X faster than tropical rainforests
- Marine nursery: Crucial habitat for juvenile fish, crustations, and invertebrates
- Biodiversity: Support species like sea turtles, dugongs, and seabirds
- Coastal protection: Reduce erosion and improve water quality
Mina Al-Oraibi: Suleimani death casts a long shadow over decade ahead
Khaled Yacoub Oweis: Hezbollah bids to control Lebanon’s financial system
National Editorial: Hezbollah's murky dealings in Iraq have been unveiled
THE%C2%A0SPECS
School uniforms report
Killing of Qassem Suleimani
Mina Al Oraibi: Air strike casts a long shadow over the decade ahead
Jack Moore: Why the assassination is such a monumental gamble
Matthew Levitt: Iran retains its ability to launch terror attacks
Damien McElroy: A CEO tasked with spreading Iran's influence
Hussein Ibish: Trump's order on solid constitutional ground
Simon Waldman: Cautious Israel keeping a low profile
While you're here
UAE's role in anti-extremism recognised
General John Allen, President of the Brookings Institution research group, commended the role the UAE has played in the fight against terrorism and violent extremism.
He told a Globsec debate of the UAE’s "hugely outsized" role in the fight against Isis.
"It’s trite these days to say that any country punches above its weight, but in every possible way the Emirates did, both militarily, and very importantly, the UAE was extraordinarily helpful on getting to the issue of violent extremism," he said.
He also noted the impact that Hedayah, among others in the UAE, has played in addressing violent extremism.
A State of Passion
Directors: Carol Mansour and Muna Khalidi
Stars: Dr Ghassan Abu-Sittah
Rating: 4/5
Mohammed bin Zayed Majlis
More from Neighbourhood Watch
War on waste
Key facilities
- Olympic-size swimming pool with a split bulkhead for multi-use configurations, including water polo and 50m/25m training lanes
- Premier League-standard football pitch
- 400m Olympic running track
- NBA-spec basketball court with auditorium
- 600-seat auditorium
- Spaces for historical and cultural exploration
- An elevated football field that doubles as a helipad
- Specialist robotics and science laboratories
- AR and VR-enabled learning centres
- Disruption Lab and Research Centre for developing entrepreneurial skills
Monday's results
- UAE beat Bahrain by 51 runs
- Qatar beat Maldives by 44 runs
- Saudi Arabia beat Kuwait by seven wickets
Saudi National Day
KILLING OF QASSEM SULEIMANI
National Editorial: Suleimani has been killed, now we must de-escalate
Mina Al Oraibi: Air strike casts a long shadow over the decade ahead
Jack Moore: Why the assassination is such a monumental gamble
Matthew Levitt: Iran retains its ability to launch terror attacks
Damien McElroy: A CEO tasked with spreading Iran's influence
Hussein Ibish: Trump's order on solid constitutional ground
Simon Waldman: Cautious Israel keeping a low profile
More from Neighbourhood Watch:
SPECS
Nissan 370z Nismo
Engine: 3.7-litre V6
Transmission: seven-speed automatic
Power: 363hp
Torque: 560Nm
Price: Dh184,500
Key figures in the life of the fort
Sheikh Dhiyab bin Isa (ruled 1761-1793) Built Qasr Al Hosn as a watchtower to guard over the only freshwater well on Abu Dhabi island.
Sheikh Shakhbut bin Dhiyab (ruled 1793-1816) Expanded the tower into a small fort and transferred his ruling place of residence from Liwa Oasis to the fort on the island.
Sheikh Tahnoon bin Shakhbut (ruled 1818-1833) Expanded Qasr Al Hosn further as Abu Dhabi grew from a small village of palm huts to a town of more than 5,000 inhabitants.
Sheikh Khalifa bin Shakhbut (ruled 1833-1845) Repaired and fortified the fort.
Sheikh Saeed bin Tahnoon (ruled 1845-1855) Turned Qasr Al Hosn into a strong two-storied structure.
Sheikh Zayed bin Khalifa (ruled 1855-1909) Expanded Qasr Al Hosn further to reflect the emirate's increasing prominence.
Sheikh Shakhbut bin Sultan (ruled 1928-1966) Renovated and enlarged Qasr Al Hosn, adding a decorative arch and two new villas.
Sheikh Zayed bin Sultan (ruled 1966-2004) Moved the royal residence to Al Manhal palace and kept his diwan at Qasr Al Hosn.
Sources: Jayanti Maitra, www.adach.ae
England squad
Joe Root (captain), Alastair Cook, Keaton Jennings, Gary Ballance, Jonny Bairstow (wicketkeeper), Ben Stokes (vice-captain), Moeen Ali, Liam Dawson, Toby Roland-Jones, Stuart Broad, Mark Wood, James Anderson.
War on waste
More from Neighbourhood Watch:
MORE ON AFGHANISTAN
More on Quran memorisation:
On Women's Day
Dr Nawal Al-Hosany: Why more women should be on the frontlines of climate action
Shelina Janmohamed: Why shouldn't a spouse be compensated fairly for housework?
Justin Thomas: Challenge the notion that 'men are from Mars, women are from Venus'
The National Editorial: Is there much to celebrate on International Women's Day 2021?
World Cup League Two
Results
Oman beat Nepal by 18 runs
Oman beat United States by six wickets
Nepal beat United States by 35 runs
Oman beat Nepal by eight wickets
Fixtures
Tuesday, Oman v United States
Wednesday, Nepal v United States
More from Neighbourhood Watch:
More on animal trafficking
Whiile you're here
Damien McElroy: Anti-science attitudes in America are proving lethal
Editorial: What makes the UAE such a good place to test vaccines?
Editorial: The fight against Covid-19 should be guided by science
The specs
Engine: 2-litre 4-cylinder and 3.6-litre 6-cylinder
Power: 220 and 280 horsepower
Torque: 350 and 360Nm
Transmission: eight-speed automatic
Price: from Dh136,521 VAT and Dh166,464 VAT
On sale: now
While you're here
Hussein Ibish: There are reasons for Democrats and Republicans to be happy
Rashmee Roshan Lall: Who are the women driving Joe Biden's success?
THE DEALS
Hamilton $60m x 2 = $120m
Vettel $45m x 2 = $90m
Ricciardo $35m x 2 = $70m
Verstappen $55m x 3 = $165m
Leclerc $20m x 2 = $40m
TOTAL $485m
MATCH INFO
Day 2 at Mount Maunganui
England 353
Stokes 91, Denly 74, Southee 4-88
New Zealand 144-4
Williamson 51, S Curran 2-28
Saudi National Day
Zayed Sustainability Prize
Mohammed bin Zayed Majlis
Volvo ES90 Specs
Engine: Electric single motor (96kW), twin motor (106kW) and twin motor performance (106kW)
Power: 333hp, 449hp, 680hp
Torque: 480Nm, 670Nm, 870Nm
On sale: Later in 2025 or early 2026, depending on region
Price: Exact regional pricing TBA
