The 21st Show

Best of: Researchers discover a crocodile “virgin birth”

 
An American Crocodile (Crocodylus acutus) egg, created without fertilization by a male crocodile, shows the banding pattern indicative of potential viability

An American Crocodile (Crocodylus acutus) egg, created without fertilization by a male crocodile, shows the banding pattern indicative of potential viability (Quetzal Dwyer)

A recent discovery found that a female crocodile living in isolation in a Costa Rican zoo laid some eggs, one of which turned out to contain a stillborn baby crocodile. This phenomenon, which some have compared to Christianity's "immaculate conception," is called parthenogenesis, and it actually has been found to occur among some fish, birds, snakes, lizards, and now crocodiles.

To talk about this discovery, we were joined by one of the scientists who helped study the fertile crocodile egg.

This conversation originally aired on June 22, 2023

GUEST:

Mark Davis

Conservation Biologist, Illinois Natural History Survey at the Prairie Research Institute

 

 

Prepared for web by Owen Henderson

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