For Halloween, Chris and Kate brave a night in a house riddled with spiders, bats and other creepy creatures, while Simon discovers which animals have made their home in a London graveyard.
Three young people with incurable conditions attempt to discover whether science will develop fast enough to cure them in their lifetime.
Watch stunning clips of your favourite animals from past BBC Natural History programmes. Highlights include:
Regular updates from the BBC Natural History unit on nature and the environment. Here are some of the latest stories:
Internet technology has transformed our lives - and the BBC wants your input for a documentary marking the web's 20th birthday.
Get to know yourself by taking our personality test. Or see if you can spot a fake smile.