What do you think Michael Palin is showing off on his camera?
Huffing and puffing along the boardwalk. What is Michael Mosley up to?
A brief encounter in the deep. What do you think this squid makes of this odd creature?
Jumping for joy! Caption these stoats.
What do you make of this gull chomping on a swarm of flies?
Caption these western grebes engaging in an incredible courtship dance.
Do you have a caption for these mudskippers from Life?
Got a funny caption for this aye-aye from Life?