Which came first: The reptile or the egg?. ScienceDaily. Retrieved July 23, 2025 from www.sciencedaily.com / releases / 2023 / 06 / 230612114643.htm. University of Bristol.

Researchers now believe that the fossil, found in Antarctica in 2011, is a giant reptile egg laid by huge sea monster 68 million years ago. The egg is the second largest ever discovered, ...

But now, scientists say the egg probably belonged to a giant sea reptile that lived around 68 million years ago. It is the believed to be the world's largest reptile egg.

Embryos of egg-laying species get nutrients from the yolk while absorbing calcium from the porous shell, which also protects them from the external environment. However, some fish and reptiles are ...