Why do sharks dive?

Is it to regulate their body temperature? Conserve energy? Find food?

Penguin foraging behaviour monitored

Accelerometers, video cameras and GPS recorders are providing a new glimpse into penguin foraging behaviour and revealing how they react to changes in their environment.

SpaceX launches cargo, but fails to land rocket

SpaceX on Wednesday blasted off its unmanned Dragon cargo ship, loaded with supplies, science experiments and food for the astronauts living at the International Space Station but failed to successfully land its booster afterwards.

page 7 from 32