Researchers at the UAB have managed to demonstrate that extreme heat can change the genetic destiny of a species. Recently published results indicate that the increase in temperatures is modifying ...

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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 grandmother hypothesis is that somehow aged, but non-reproductive animals are positively affecting the reproduction of their own children and grandchildren,” explains Clark.

But while ancient sponges may have been among the first animals to reproduce sexually, the act itself long predates them. That's because life forms were having sex before animals came onto the scene.

Humans are not the only organisms that have periods — some animals do too, but scientists still aren't sure why.

A variety of species across the animal kingdom can reproduce both sexually and asexually, including some types of starfish, water fleas, hammerhead sharks and Komodo dragons.