Boyd’s forest dragon is an australian forest dragon. The species is native to rainforests and their margins in the Wet Tropics region of northern Queensland. In SEA LIFE Aquarium Melbourne, one females’ ovarian tissue disappeared, they stopped producing eggs, and then started to develop male characteristics — making it the world’s first reptile to change sex after birth. The dragon that has changed sex had previously mated with the male and laid eggs, confirming it was female. However, now it has stopped producing eggs and has developed male physical characteristics, including testes.