- 1. Many fish can see in the dark better than cats.
2. Some species of fish can identify other individual fish’s levels of stress!
3. After swimming for thousands of miles, salmon can identify the water they were born in simply by its smell.
4. Many fish elaborate complex mental maps of their surroundings. They learn where to find food, who to trust or be afraid of, and even who to mate with.
5. Contrary to popular belief fish have great memories. Rainbow fish remembered how to escape a tank 11 months after having done it the first time. This is as if a human remembered a lesson learned 40 years ago.
