A tiny, scaleless, freshwater fish, the highly endangered unarmored threespine stickleback is a fierce protector of its nest, which it defends by dashing forward with gaping mouth and “hackles” raised ...

The stickleback is also extremely adaptable and can survive in both fresh and salt water. Find out below what you need to keep and care for them at home. The three-spined stickleback is not only a ...

When exposed to an increase in the water temperature of their habitat, zebrafish, three-spined stickleback and flounder adapt ...

In winter they hibernate in pond mud or under log piles. The three-spined stickleback is a small fish found in ponds, lakes, ditches and rivers. It is a carnivore and eats other small animals ...