
Crocodiles can reproduce without males – and maybe dinosaurs could too
6 June 2023
An egg laid by a female American crocodile with no access to males developed into a fully formed fetus in the first known case of "virgin birth" in a crocodilian

6 June 2023
An egg laid by a female American crocodile with no access to males developed into a fully formed fetus in the first known case of "virgin birth" in a crocodilian

6 April 2023
A bizarre mode of reproduction discovered in yellow crazy ants results in males that have two separate sets of DNA in different parts of their body

8 February 2023
Female orcas in the north Pacific hunt and share food with their adult male offspring, and this seems to limit their chances of having more calves

22 December 2022
A “sex peptide” transferred from male to female fruit flies during mating interferes with the female’s biological clock, reducing her chances of mating again

22 September 2022
In mock-ups of the female reproductive tract, bull sperm cluster in groups of two to four, which seems to help them swim upstream

29 April 2021
Female black widow spiders often mate with and eat only one male – but in one species the female will mate again, meaning males die even though they may not father offspring

1 April 2021
When presented with a choice between a subordinate and dominant male, female sheep choose the less aggressive rams – which helps increase genetic diversity among lambs