Coconut crabs have organs known as "branchiostegal lungs", which are used instead of the vestigial gills for breathing and they will drown if immersed in water for long.
They cannot swim, and will drown if immersed in water for long. Coconut crabs have organs known as "branchiostegal lungs", which are used instead of the vestigial gills for breathing.
Coconut crabs have organs known as "branchiostegal lungs", which are used instead of the vestigial gills for breathing. They cannot swim, and will drown if immersed in water for long.
Coconut crabs have organs known as "branchiostegal lungs", which are used instead of the vestigial gills for breathing. They cannot swim, and will drown if immersed in water for long.