fossil reveals oldest pregnant lizard
Last Updated : GMT 05:17:37
Emiratesvoice, emirates voice
Emiratesvoice, emirates voice
Last Updated : GMT 05:17:37
Emiratesvoice, emirates voice

Fossil reveals oldest pregnant lizard

Emiratesvoice, emirates voice

Emiratesvoice, emirates voice Fossil reveals oldest pregnant lizard

London - Tehran

Just days before giving birth to at least 15 young, a lizard somehow kicked the bucket. That was 120 million years ago, and researchers have now found the fossilized pregnant lizard with fully formed embryos in her belly. The fossil, discovered in China, is the oldest known example of a lizard bearing live young. Lizards and other reptiles typically lay eggs. \"\"This is the oldest record of live-bearing in a lizard and the first record of live-bearing (viviparity) in a tetrapod that is not a specialist swimmer,\"\" study researcher Susan Evens told LiveScience in an email. \"\"This new find shows that the pre-adaptations for viviparity must have evolved quite early in the group.\"\" This fossil shows that pregnancy is as old as the dinosaurs, and seems to be widespread, even in ancient lizards. Mammals seem to have evolved pregnancy around this time as well. Prego the lizard The mama-to-be is a species in the genus Yabeinosaurus, which lived during the early Cretaceous period when dinosaurs trod the Earth; other examples of this species date back 125 million years at least. [Pictures of pregnant lizard] \"\"We have several specimens of this lizard (Yabeinosaurus) already, but each one tells us a little more about its biology,\"\" Evans said. This specimen is about a foot long (30 cm) and contains at least 15 complete embryos. They are so well preserved the researchers could even see their fully formed teeth. The lizard would have been just days away from giving birth, they said. Mammals, like humans, aren\'t the only animals to give birth to live young. About 20 percent of modern lizards and snakes bring their babies to term, while birds and other reptiles, including crocodiles and turtles, are exclusively egg-laying. Pregnancy seems to have evolved in lizards and snakes more than 100 different times. The newly discovered lizard lived by the water but also spent time on the land, which would\'ve made it tough to get around with cargo onboard. Other pregnant lizards, which lived during the late Cretaceous, were strictly water-living animals; lizards impregnated with babies could have maneuvered more easily in the water than on land. Bearing live young has its upsides, among them the fact that a mama doesn\'t have to leave her babies in a nest where they could be preyed upon.

Name *

E-mail *

Comment Title*

Comment *

: Characters Left

Mandatory *

Terms of use

Publishing Terms: Not to offend the author, or to persons or sanctities or attacking religions or divine self. And stay away from sectarian and racial incitement and insults.

I agree with the Terms of Use

Security Code*

fossil reveals oldest pregnant lizard fossil reveals oldest pregnant lizard

 



Name *

E-mail *

Comment Title*

Comment *

: Characters Left

Mandatory *

Terms of use

Publishing Terms: Not to offend the author, or to persons or sanctities or attacking religions or divine self. And stay away from sectarian and racial incitement and insults.

I agree with the Terms of Use

Security Code*

fossil reveals oldest pregnant lizard fossil reveals oldest pregnant lizard

 



GMT 05:06 2024 Tuesday ,06 February

New hunt for flight MH370 gets under way

GMT 06:15 2018 Tuesday ,23 January

Volkswagen clinches record sales

GMT 09:54 2018 Wednesday ,24 January

'Friendly and kind' N. Korean skaters

GMT 11:03 2018 Tuesday ,23 January

No end to eyesores at Taj Mahal

GMT 10:56 2017 Tuesday ,21 March

MP amongst Palestinians kidnapped by IOF overnight

GMT 18:05 2012 Friday ,09 November

Rome film fest favours emerging directors

GMT 12:19 2016 Monday ,28 March

Japan loses track of $273m black hole satellite

GMT 21:39 2017 Monday ,06 March

Arab Movement forces control Timbuktu

GMT 14:13 2017 Saturday ,11 March

CHELSEA Beat SWANSEA City 3-1

GMT 09:09 2017 Thursday ,21 September

Kagawa leads Dortmund 'fire engine' back

GMT 06:43 2017 Thursday ,23 March

Wael Jassar says he still works with Arabica

GMT 07:41 2017 Thursday ,16 March

IOF raid West Bank, injure five, arrest 23 by dawn

GMT 12:37 2017 Wednesday ,15 March

Antarctic penguin numbers
 
 Emirates Voice Facebook,emirates voice facebook  Emirates Voice Twitter,emirates voice twitter Emirates Voice Rss,emirates voice rss  Emirates Voice Youtube,emirates voice youtube  Emirates Voice Youtube,emirates voice youtube

Maintained and developed by Arabs Today Group SAL.
All rights reserved to Arab Today Media Group 2021 ©

Maintained and developed by Arabs Today Group SAL.
All rights reserved to Arab Today Media Group 2021 ©

emiratesvoieen emiratesvoiceen emiratesvoiceen emiratesvoiceen
emiratesvoice emiratesvoice emiratesvoice
emiratesvoice
بناية النخيل - رأس النبع _ خلف السفارة الفرنسية _بيروت - لبنان
emiratesvoice, Emiratesvoice, Emiratesvoice