The Spectacular Fish of Lake Malawi

The Spectacular Fish of Lake Malawi
The Spectacular Fish of Lake Malawi
Sometimes I choose my destinations and sometimes they choose me. Malawi was a little bit of both: first and foremost, there were some wonderful children that I needed to meet. However, as a lifelong reader of National Geographic, I have always harbored a wish to see the great Lake Malawi for myself and if possible,…

Evolving guppies shape their environments

Evolving guppies shape their environments
Evolving guppies shape their environments
The streams of Trinidad and Tobago are home to the most unexpected of landscape gardeners – guppies. Without tools or plans, these tiny fish shape the environment around them, tweaking everything from the numbers of different species to the nutrients in the water.

One gene, many fish

One gene, many fish
One gene, many fish
The Great Lakes of East Africa swarm with fish–particulary with one kind of fish known as cichlids. In Lake Victoria alone you can find over 500 species. These species come in different colors and make their living in many different ways–sucking out eyeballs of other cichlids, scraping algae off of rocks, and so on. What’s […]