Some species of baleen whales avoid attracting killer whales by singing too low to be heard

Scientists in Australia have successfully produced the world's first kangaroo embryo through in vitro fertilization, or IVF. With this method, which may one day help save endangered species, many species will be saved from extinction.

Study shows some species are susceptible to broad range of viruses - EurekAlert

The “Deck of Life” Is Being Shuffled Too Fast – and Species Are Losing