fish, evolution

The Challenger expedition's data on ocean temperatures and currents, seawater chemistry, life in the deep sea, and the geology of the seafloor spurred the rise of modern oceanography.

Cuckoo catfish trick cichlids into caring for their eggs in a strategy known as brood parasitism.

Researchers identify the genetics underlying the development of dorsal fins in ancient fish.

A closer moon and ideal coastal conditions for tide pool formation may have started the evolutionary transition of tetrapods.

Poecilia formosa, an all-female fish species, has a surprisingly robust genome. 

Two studies identify a signaling pathway that contributes to the fish’s sleeplessness.

Their waters served as refuges during ice ages, allowing for adaptation and the emergence of new species.

A fish created by spontaneous androgenesis is the first known vertebrate to arise naturally by this asexual reproductive phenomenon. 

Guppies transplanted between different communities in Trinidadian streams evolved in response to changes in predation threat in just a few generations.

An analysis of ancient fish fossils suggests that mammalian and fish tails are fundamentally different structures, each with unique evolutionary histories.

Fish evolved to make their own light at least 27 times, according to a study.

Zebrafish and other vertebrates have the enzymatic machinery to synthesize gadusol, an ultraviolet light-absorbing compound.

A round-up of recent discoveries in behavior research

New analysis of an ancient specimen prompts a rethink of fish forebears.

A round-up of recent discoveries in behavior research

Tetra fish adapted to extreme darkness lose circadian metabolic rhythms to conserve energy, according to a study. 

Raising a semi-terrestrial species on land highlights the role of developmental plasticity in the evolutionary transition from water to land.

Two paleontological findings yield insights into early vertebrate evolution.

The gene behind a butterfly’s mimicry; the evolution of adipose fins; bacteria and bowel cancer; plants lacking plastid genomes