The Average Betta Fish Life Cycle. It is easier said than done for betta fish to breed. Male fighting fish make a bubble nest for their young, and this attracts females to him.

Such is the cycle of life that drives fish to swim into the river to spawn, or out of the river to do the same thing. Animals have evolved to take advantage of the season to their benefit.

Real-life experience and a big fish tank in their classroom are teaching children at Eskasoni Elementary and Middle School about the cycle of life – from birth to death. July 6, 2025 2 min read ...

To get a better idea of how the spread of farmed salmon’s genes is affecting wild fish, Geir Bolstad at the Norwegian Institute for Nature Research in Trondheim and his colleagues collected ...

A trove of fossils in China, unearthed in rock dating back some 436 million years, have revealed for the first time that the mysterious galeaspids, a jawless freshwater fish, possessed paired fins.

Parasites give new meaning to the cliché “eat or be eaten.” Often their life cycle can be completed only if they are ingested by a host—multiple times for some—making the odds of their ...

Learn about different animal life cycles with these interactive learning resources for KS2 Science students aged 7-11 from BBC Bitesize.