Wherein Isobel and Maria show us the ropes -- or nets -- for surveying fishes in the Amazon. The distribution of fish in tropical river systems is important to understanding how animals move around these waterways. Where there are big fish -- like the electric eel -- we know there must be an ample supply of prey species, too!
Read more about An Electric Eel and a Caiman
Check out what our Chief Curiosity Correspondent, Emily Graslie, has explored on The Brain Scoop!