I’ve just returned from a lovely holiday in Costa Rica. We saw, among many other creatures, Green Parrots, Scarlet Macaws, Pelicans, Frigatebirds, beautiful Blue Morpho butterflies, four species of monkey, Leafcutter ants, the more frightening Bullet ants, Iguanas, Crocodiles and a Bird-eating snake. But pride of place probably goes to a Three-toed Sloth that we [...]