The cichlids of Africa's Lake Tanganyika exhibit extraordinary diversity in terms of shape, diet, habitat and coloration.

A distant star-killing supernova could have bombarded Earth with radiation strong enough to shift the course of evolution.

This small bottom dwelling fish lives on the bottom of lake Tanganyika, and here it employs the grisly tactic of brood parasitism. Once they detect spawning cichlids on the bottom of the lake ...

Credit: Robert Lea (created with Canva) The cichlid fish in Lake Tanganyika never knew what was coming. How could they? A star from dozens of lightyears away was to blame for what would soon happen.