How Goldfish Went From Pretty To Invincible And Back Again

Goldfish originated as hybrids in China and evolved unique traits due to whole genome duplication. They adapted to various temperatures, allowing them to spread globally. Their ability to survive low oxygen environments made them popular pets and research models. However, selective breeding has reduced their genetic diversity and survival skills.

What evolutionary event led to goldfish having four sets of chromosomes?

How did goldfish adapt to survive in varying temperature conditions?

How did the introduction of goldfish to Europe occur in the 18th century?

What unique ability do goldfish have that allows them to survive with low oxygen levels?

What role did goldfish play in scientific research, particularly in toxicity studies?

What are some of the striking features of the various goldfish varieties created by breeders?

Describe the impact of selective breeding on the survival skills of fancy goldfish.