Parental egg-care in fish traps them in an evolutionary dead-end through the loss of the chorion-hardening system, according ...

In the lab, a few carp eggs survived and even hatched after being pooped out by ducks. The finding may help explain how fish reach isolated waterways.

The eggs of marine fish are so difficult to discern from one another that even aquarium curators like Kylie Lev, who works at the California Academy of Sciences’ Steinhart Aquarium, often have ...

Fish (eggs) out of water: evolutionary divergence in terrestrial embryonic plasticity in Trinidadian killifish. Proceedings of the Royal Society B: Biological Sciences , 2024; 291 (2025) DOI: 10. ...