Nature is full of evolutionary selflessness. From deep-sea octopuses to certain marsupials, there are animals and insects that reproduce and then die, as their lives can be cut short because they ...

Animals reproduce in a variety of fascinating ways. Some species, including humans and many other mammals, give birth to live ...

There have been some large animals discovered over the course of history. In the 1960s, the largest bear ever caught outsized the average elephant, and this bear still holds the record today. The ...

Scientists are studying Nectophrynoides frogs that give birth to live young. This unique reproductive method helps them survive in dry forests. These ...