We've seen in our simulations that the more brightly colored a male guppy is, the more likely he will be seen -- and eaten -- by a predator. In a simulation or in the wild, where predators are ...

Scientists observed male blue-lined octopuses injecting tetrodotoxin into females, which rendered them immobile for mating ...

A shark research expedition off North Florida reports it caught “the largest male white shark” ever tagged along the East Coast. It measured the shark at 13.8 feet and 1,652.8 pounds ...

A young, endangered Florida predator was hit and killed by a vehicle, marking the second death for the species in less than ...

Male blue-lined octopi (Hapalochlaena fasciata) have been found to use venom on their sexual partners, as well as for the ...