Scientists in Australia have discovered a cave filled with the remains of prehistoric mammals.The find reveals some surprising similarities between these lost creatures and modern-day kangaroos and koalas.
The discovery includes 26 skulls from an extinct, wombat-like marsupial that was an odd-looking creature the size of a sheep, which had giant claws. These may have been uded to climb trees - as koalas do today.
(BBC 19 July)
