One of the most fascinating aspects of human life is how we choose our mates. Animals also choose their mates, sometimes with a great deal of care. Mating systems are important to understand ...

Craigslist recently reported that bartering activity had jumped more than 80% on the site over the past year. Sites such as BarterQuest.com report a surge in interest, too. BarterQuest ...

Some would even argue that it's not purely a human activity; plants and animals have been bartering—in symbiotic relationships—for millions of years. In any case, barter among humans certainly ...

Turco have introduced a bill that would prohibit the “selling, leasing, auctioning, bartering or otherwise ... and they could then showcase those animals in their stores. People would still ...

So do any other animals kiss? If you want to know the answer, first you need to define a kiss — and that's not as simple as it sounds. From a tongue-filled makeout to a platonic peck on the ...

Animals can also be grouped as either predators that eat other animals or prey that are eaten by other animals. All animals need water to survive. Land animals will get water by drinking it. Fish ...