Thirty babies in a lifetime might sound unbelievable, but in the animal world, that number can be modest. Reproduction follows a clear biological pattern.

After cold winters, invertebrates such as honeybees and paper wasps seem to disappear and then suddenly return in large ...

Invasive species are a threat to biodiversity, causing damage to local ecosystems and, potentially, economic loss. Once a non ...

Amazon mollies don't need a man, and never will. A new study finds they can purge and repair genetic mutations that would otherwise plague a self-cloning species.

When closely related species mate, their offspring sometimes survive but cannot reproduce. This pattern often affects males ...

Cindy Eckert and the filmmakers of ‘The Pink Pill’ share what this moment means for women’s health.

The Amazon molly reproduces without sex. A genomic copy-and-paste trick called gene conversion may explain how it avoids evolutionary meltdown.

A Supreme Court bench remarked that unmarried men and women are  “total strangers” and should be cautious about engaging in premarital physical relationships ...

In documentary The Pink Pill, the fight to provide access to the so-called ‘female Viagra’ exposes an industry that still discounts the needs of women ...

Across the animal kingdom, sound is more than communication—it's a signal of survival and success. From birds and primates to insects, fish, and amphibians, animals broadcast acoustic "advertisements" ...

A rare Florida cold front stunned and killed thousands of invasive iguanas, but wildlife experts warn the population is likely to rebound due to their high reproductive rate.

Here are 10 animals that have some of the highest levels of testosterone and the impact it has on their behavior and characteristics.