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

Evolution is responsible for Earth’s stunningly diverse spectrum of life, but that wasn’t always the case. In fact, the ...

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 ...

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

For millions of years, some of Earth’s earliest animals barely changed. They lived, grew, and spread across the seafloor, but ...

Scientists say Earth's earliest animals reproduced by cloning themselves, a strategy that limited competition and slowed ...

A new study published in Science and led by Monash University biologists reveals that the energy cost of reproduction is far greater than previously believed. The research, led by Dr. Samuel C Ginther ...

If you’ve ever had a spiny leaf insect as a pet, or you’re considering getting one, hopefully someone has warned you about this: if you put one in your enclosure, you might come back some time later ...