The tiny golden mantella frog; one of the most endangered animals in the world.
Saving the lives of these stranded whales is a race against time. Around 70 pilot whales have been found on the sand at Puponga Beach in New Zealand this week.
On the streets of London a helmet can save a cyclist's life.
This Argentinian bull has a device attached to its back to prevent methane escaping when it belches.
