How many tree kangaroos are left in captivity?

There are around a dozen different species of tree kangaroos in Australia and New Guinea, and figures vary according to the species.

Scott's Tree Kangaroo (also known as the Tenkile) of New Guinea is one of the most endangered species, and in 2001 there were believed to be only around 100 of these animals left. The population seems to be recovering slowly. The Wondiwoi tree kangaroo is critically endangered, possibly even already extinct, with an estimated population of no more than 50.

The population of Lumholtz's Tree kangaroo, on the other hand, is listed on the IUCN Red list of threatened Species as "least concern", with a population trend of 'stable', but figures are not available regarding how many are left.