Walruses

Huge, blubbery and a bit grumpy. Walruses are easy enough to spot. But thanks to their remote Arctic location, they're hard to count, and we don't know how many of these giant beasts there are. Now, using satellite images, the plan is to locate every Atlantic and Laptev Sea Walrus, and scientists say this is essential because climate change means these animals are under threat. Today, though, the most advanced imaging satellites can see details down to just 30 centimetres. And this has transformed our view of the natural world. Even at that resolution, counting walruses is still a challenge. So the scouts in East Molesey have been drafted in to help. The first job was scouring a search area of 25,000 square kilometres to find any images that had a walrus in it. It's quite hard because there is like, rusty barrels and rocks that look really similar. It's kind of a challenge as well, because they're all hidden, and you have to try and search for them. But the project is going to need a lot more people to help with the count.