Honey possums are so tiny (40 -90 cm), they need constant supplies of pollen and nectar to survive. They live in one small part of south-eastern Australia, and have a symbiotic relationship with the flowering plants there, passing on pollen as they feed.
Honey possums are unique in several ways. They are not true possums; they are the sole survivor of another marsupial group. They have the largest testes, the largest sperm and the tiniest live young of any mammal. Honey possums are common in their area, but this is declining due to loss of habitat for agriculture. Other threats include bush burning, flower picking and domestic cats.
Illustration © Liz Brownlee