but for fish enthusiasts, having an aquarium full of different species makes them smile. Keep reading to find out which ...

Dominant males, which have higher levels of androgen hormones, are larger, more aggressive, and more colorful than subordinate ... status in a highly social cichlid fish, Frontiers in Behavioral ...

Behavioural experiments in shell-dwelling cichlid fish reveal evolutionary adaptations in parents and offspring that control the timing of emergence from the nest. To mimic the empty snail shells ...