A genus of small fish commonly known as sticklebacks, named for their distinctive belly spines.
From Greek 'gaster' (belly) + 'osteon' (bone), referring to the characteristic spines along the belly of these fish. The genus name was formalized in Linnaean taxonomy during the 18th century.
Sticklebacks are one of the fastest-evolving vertebrates on Earth—populations in different lakes developed completely different body types in just 10,000 years after the last ice age, making them crucial for understanding evolution!
Complete word intelligence in one call. Free tier — 50 lookups/day.