The way that Earth's first animals reproduced held back life's diversity for millions of years, until stress and competition ...

Fossils from some of the oldest-known animals on Earth, dating from 574 million years ago (Ediacaran period), suggest that cloning, not competition, dominated the Ediacaran seas, slowing evolution ...

Earth’s earliest animals may have held evolution back because they reproduced asexually, creating low-competition communities ...

A study has found that the reason why the evolution of the first animals to appear on Earth was delayed for over 10 million ...

In the animal kingdom, reproduction is a necessary part of species survival. Parthenogenesis, a form of asexual reproduction where embryos develop from unfertilized eggs, has been observed in captive ...

These unusual facts about animal sexuality expose the oddities associated with animal reproduction and sexual habits in nature. Whether it’s an eccentric animal reproductive method or a strange ...

How do animals decide when to fight and when to walk, fly, slither, or swim away? Most research on animal conflict has focused on the short-term costs of single interactions, but a pair of behavioral ...

Animal reproduction encompasses the full sequence from gamete formation through fertilisation, embryonic development and parturition. In farm and companion species alike, natural breeding is ...

The common fruit fly normally needs a mate to reproduce. But scientists tinkering with its genes found the ones that can induce parthenogenesis, or virgin birth. For the first time, scientists ...

Institute of Animal Reproduction and Food Research, PAS has the following research output in the current window (1 January 2025 - 31 December 2025) of the Nature Index. Click on Count to view a list ...