An Antarctic gentoo penguin uses a small pebble as a token of love to symbolise his proposal, while a lemur in Madagascar uses poisonous millipedes as a form of pest control.

Join a line of hermit crabs as they prepare for a very orderly house swap on a beach in Belize, and meet a chimpanzee in Senegal who has found a genet cat to keep as a pet.

Tenacious meerkat pups show their determination to devour deadly scorpions in the vast Kalahari Desert, while a group of lionesses' demonstrate their seduction tactics in Kenya.

Go rogue with frigate birds who steal meals from smaller seabirds, relax in a mongoose-run spa with a grateful warthog, decode an African elephant's secret message, and watch lovelorn capuchin monkeys hurl rocks to attract prospective mates.

Marvel at a toothy fish that helps sharks maintain their pearly whites, discover the signature calls of dolphin families, examine a capuchin monkey's nut-cracking stone tools, get the warm fuzzies when giraffes snuggle, and meet a meerkat mobster.