Read about giant animals: -The giraffe can be up to 6 metres tall, as tall as a two-storey house -The South American capybara is the world's largest rodent at 60 centimetres tall and a weight of 64 kilograms -The largest land animal is the African elephant; it can be 4 metres tall at the shoulder -The largest animal on Earth, the blue whale can weigh up to 170 tonnes and be 30 metres long.