Do kangaroos and Koalas have long nails?

not necessarily, but both do have very sharp claws. Kangaroos have long nails on their forepaws and hind feet. Kangaroos will use the long, sharp nails on their hind feet as defence. The koala's nails are shorter, but curved, strong and very sharp. these claws can inflict some serious wounds on attacking animals, whilst they are also sharp enough to enable a koala to climb the smooth trunk of a very tall gum tree in a matter of seconds.