Namaste, iam Tammy Hernandez, Have a blessed day.

How Did Some Ocean Sticklebacks Come To Live In Freshwater Ecosystems? [Solved]

Some stickleback populations became trapped in lakes that formed at the end of the last ice age. (Freshwater stickleback populations were established when marine populations became trapped in the freshwater lakes where they migrate to spawn annually.

Stickleback Evolution

Paul Andersen describes microevolution and macroevolution in

Making of the Fittest: Evolution of the Stickleback Fish — HHMI BioInteractive Video

Natural selection leads to

I stumbled upon sticklebacks and put them in a tank

In this video I tell