I’ve heard that geckos can produce clones of themselves. A gecko egg does not need to be fertilized to develop into a normal gecko. A normal female gecko. Which is a clone of its mother.
When an ant queen lays eggs and female worker ants hatch from them, those eggs were fertilized by sperm from a male ant. During the future queen’s maiden – and conjugal – and only – flight, she mates with as many ant males as she can. She can store up sperm for years, using it judiciously to build up an ant city of her daughters. The ant queen also produces sons. But she doesn’t use sperm on the eggs that will hatch as sons. Her sons are her clones. Half-clones, actually.
Most animals, including humans, are diploid, which means that each of their cells contains two sets of chromosomes. When they make sperm and eggs, however, each sperm and egg contains only one chromosome set: when they are combined in the form of a fertilized egg, the animal will then be born with two sets of chromosomes. Males of bees and ants, however, are born as haploid animals, which means that each of their cells contains only a single set of chromosomes.
Cut a queen in half and she’s really a boy? It takes two kings to make a queen …
Which leaves me wondering about those geckos – are they all just a harem of haploids?
source: Secret Lives of Ants by Jae Choe