Skates evolved their undulating wings thanks to genome origami
12 April 2023
The front fins of skates emerge from their heads as huge wings and now we know how they can develop in this way
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Seahorses have a super strong gulp thanks to two spring-like tendons
11 April 2023
Elastic tendons let seahorses suck in water around eight times faster than they could using muscle power alone
Influenza viruses may have originated in fish 600 million years ago
1 March 2023
A flu virus found in a sturgeon resembles the predicted ancestor of all known forms of influenza, hinting that the virus first evolved in fish
Surprisingly bright blue fish discovered in the darkest ocean depths
21 October 2022
Most snailfish living in the deepest ocean realm known as the hadal zone are ghostly white with tiny eyes. But a newly described species has large eyes and is intensely blue
A fish that evolved to stand up on land went back to living in water
20 July 2022
A fossil from 385 million years ago named Qikiqtania wakei shows that a descendant of early land animals lost its adaptations for land and became a more efficient swimmer
Blind Mexican cave fish are developing cave-specific accents
14 April 2022
The Mexican tetra has evolved to live in a number of dark caves – and now we know that the fish in each cave use clicks to communicate in distinct ways
Breeding with farmed fish is changing the life cycle of wild salmon
22 December 2021
The evolutionary fitness of Atlantic salmon is being damaged by genetic contamination as wild fish breed with escapees from fish farms
Ancient anchovies were huge and used sabre teeth to eat other fish
12 May 2020
Fossils have revealed that after the extinction of the dinosaurs, anchovies evolved into metre-long predators with sharp sabre-like teeth to devour other fish
Dragonfish have 'invisible' teeth to help them sneak up on their prey
5 June 2019
Dragonfish live in the deep sea and have transparent teeth sharper than a piranha’s. A study has now found what makes their teeth see-through
Some deep-sea fish have evolved souped-up colour night vision
9 May 2019
Several species of fish living in the deep ocean have evolved extra copies of genes that enable them to see a range of colour hues in the near-darkness
