Animals: Big Cats, 8pm, BBC1

As the planet’s top predators, cats have the ability to enthral us like no other animals. This stunning documentary follows ultimate cat species from around the world, from the lions of Tanzania – the only cat species to live in groups – to the tiny rusty spotted cat of Sri Lanka, 200 times smaller than a lion but just as curious. The film also peeks into the secret lives of the Canada lynx, which lives further north than any other cat. Until now, lynx were creatures of mystery but technology provides an insight into their secret lives at last. We also get the chance to follow an African leopard and mother, which for a decade has worn a radio collar allowing scientists to follow every twist and turn of her existence.