David Attenborough investigates the remarkable life and death of Jumbo the elephant – an animal superstar whose story is said to have inspired the movie Dumbo.

  The team comes up with a bodacious excellent adventure-themed terrarium for Jay and Bean from Happy Harbor Comics.

  In an epic quest, three-time Emmy award-winning cinematographer Rick Rosenthal piles the Atlantic and plumbs the secrets of the bluefin tuna.

From the biggest dog the clinic has ever handled, to the smallest toe on a tiny cat's foot, the vets of Fox Hollow have to be ready for every eventuality.

  Matt and the team head to Montana on a 3-month undercover mission to find and document illegal wolf poaching in the rough terrain of the Bitterroot Valley.

  Are we making raccoons even smarter? How are rats helping save lives and could reptiles be a lot cleverer than we think?

Natural scientists are challenging a century of patriarchal biases about the role of females in the mammal world.

  Jeremy Wade travels to Alaska to investigate the disappearance of the majestic king salmon. His search will take him through the heart of grizzly bear territory.