Male blue-lined octopuses inject a powerful neurotoxin into the hearts of females before mating to avoid being eaten, ...

In trials with rabbits and pigs that had damaged penis tissue, the 3D printed penis was able to restore sexual function. It ...

COLUMN. A German team discovered that some males don't produce testosterone but instead breaks it down, making this bird a symbol of sexual diversity.

A stunned father watched on as a massive humpback whale swallowed his son whole before spitting him out unharmed in a hair-raising incident captured on video. Dell Simancas and his son Adrian were ...