Dr Oakley treats a miniature horse with a mystery condition and wrangles some rather riotous cows. An emergency gives Sierra a chance to show off her skills

Some of the deadliest patients at the zoo, including a 200-pound python with killer back pain, a girl-shy male lion and a bear with a gnarly cough

The Komodo Dragon has captured the public imagination for over a century, yet its most incredible secrets are only now being discovered

The discovery of a community of dwarf crocodiles living in the pitch darkness of Gabon's Abanda Caves, which survive by hunting bats and have developed an unusual orange colouring

In this first look, in extreme subzero temperatures The next generation of Alaskans seeks out new hunting grounds to catch the nutrition they need to survive

The police put Thord under pressure to rescue a truck blocking a tunnel. Bjorn rescues a truck that has slid out on sheet ice - but passing trucks are coming too close for comfort