What can we expect in the first episode of Blue Planet II this weekend?Published27 October 2017Image caption, Filming the giant trevally fish catching its prey was tricky for the Blue Planet team. The creature leaps out of the water to catch a bird very quickly and disappears straight back in. And the fish might not seem that menacing here but it weighs the same as 40 bags of sugar and is quite aggressive!Image caption, These creatures filmed off the coast of New Zealand are black, up to 6 metres long and look a lot like pilot whales, so they were thought to be whales too. But in fact they're dolphins! And have been given the very clever name of false killer whales.Image caption, Here are two bottlenose dolphins with a calf in the Red Sea in Egypt. Some of these dolphins have been spotted rubbing a special type of coral which is thought to be like a medicine for them.Image caption, Who are you looking at? Well an orange dotted tuskfish if you're asking. This one lives in the Great Barrier Reef off the coast of Australia and was named Percy by the filming team.Image caption, Tuskfish use coral in the sea to smash open shells to eat. Percy here picks up the clam in his mouth and swims back to this coral. He starts whacking it using the coral as a tool to break open the clams and get inside.Image caption, The new series used the latest technology to film the creatures and how they live. Divers were able to get super close to watch how the tuskfish got its food.Image caption, The filming took care not to disturb the animals. This walrus mother and calf don't seem to even realise the camera is on them while they rest on this iceberg in the Arctic.More on this storyBlue Planet II will take your breath away. Video, 00:01:28Blue Planet II will take your breath awayPublished26 October 20171:28Attenborough back with Blue Planet II. Video, 00:02:23Attenborough back with Blue Planet IIPublished30 September 20172:23Blue Planet II: Incredible new ocean imagesPublished16 October 2017What's Attenborough's favourite animal? Video, 00:00:17What's Attenborough's favourite animal?Published27 September 20170:17