Mexican officials say fishermen have found two 'exceptionally rare' conjoined gray whale calves in Baja California.

One of the ocean's great predators - the great white shark - lives significantly longer than was previously thought, with animals capable of getting into their 70s.

Europe's honeybees are struggling to keep crops pollinated because of a growing demand for biofuel.

Prairie dogs perform a contagious "Mexican wave" which researchers think helps them to look out for predators.

A tracking device which weighs less than a paperclip helps scientists uncover one of the world's great bird migrations.

Astronomers have pinpointed the positions of galaxies in the universe to a new 'gold standard' accuracy of just 1%.

A glue that can seal open wounds or repair leaking blood vessels in the heart is developed in the US.

Emperor penguins display some unexpected breeding behaviour in the Antarctic that could mean they are much more resilient to environmental change than previously recognised.