Komodo Dragons and Parthenogenesis

There seems to be an unlimited number of methods by which plants and animals reproduce. In 2006 in England’s Chester Zoo a female Komodo dragon (a large lizard) who had never been in the presence of a male laid a clutch of eggs that hatched producing male Komodo dragons.

This self-fertilization process is called parthenogenesis, and it apparently happens often with Komodo dragons. When a female Komodo dragon is isolated so that normal sexual reproduction cannot take place, the isolated female can bear male offspring which will have the same DNA as the mother. When they grow up, they can be the female’s mate. This doesn’t allow for diversity in the gene pool, but it does provide a way for a geographically isolated population to reproduce.

Komodo dragons only live in the wild on seven islands of Indonesia. They are threatened by loss of habitat and poaching of the animals they prey on such as wild boar, water buffalo, and deer. They have been designed with a method to protect them from extinction.

Komodo dragon parthenogenesis is possible because the females have both male and female chromosomes. This allows for reproduction in a way that meets their particular situation. God’s design to keep Earth populated with life is incredible, and discoveries continue to help us understand just how complex the design is.
Reference: National Geographic, November 2017, page 29.
–John N. Clayton © 2017