fish
Satiated Fish Swim at the Back of the Pack
Satiated Fish Swim at the Back of the Pack
Ashley Yeager | Jul 1, 2018
Digesting a big meal takes energy, forcing some minnows to swim in spots at the rear of a school.
Climate Change Will Force Hundreds of Marine Species to Move
Climate Change Will Force Hundreds of Marine Species to Move
Catherine Offord | May 16, 2018
A study of 686 fish and invertebrates predicts that some animals will have to shift more than 1,000 kilometers to stay within tolerable temperatures.
Large Female Fish Play a Big Role in Replenishing Populations: Study
Large Female Fish Play a Big Role in Replenishing Populations: Study
Diana Kwon | May 11, 2018
Bigger, older mothers produce disproportionately more eggs than their smaller counterparts do.
Proposed Seismic Surveys Raise Concern Over Health of Marine Life
Proposed Seismic Surveys Raise Concern Over Health of Marine Life
Ashley Yeager | May 11, 2018
The Atlantic has been free of intense air-gun blasts to probe for oil and gas for 30 years, and researchers fear for endangered North Atlantic right whales and other animals.
Image of the Day: Hold My Brood
Image of the Day: Hold My Brood
The Scientist Staff, The Scientist Staff | May 9, 2018
Cuckoo catfish trick cichlids into caring for their eggs in a strategy known as brood parasitism.
Image of the Day: Original Fin
Image of the Day: Original Fin
The Scientist Staff, The Scientist Staff | Apr 2, 2018
Researchers identify the genetics underlying the development of dorsal fins in ancient fish.
Study Finds Epigenetic Differences Between Hatchery-Raised and Wild-Born Salmon
Study Finds Epigenetic Differences Between Hatchery-Raised and Wild-Born Salmon
Shawna Williams | Mar 1, 2018
The variation may help explain why stocked salmon don’t fare as well in the ocean.
Strong Tides May Have Driven Ancient Fish to Dry Land
Strong Tides May Have Driven Ancient Fish to Dry Land
Jim Daley | Feb 15, 2018
A closer moon and ideal coastal conditions for tide pool formation may have started the evolutionary transition of tetrapods.
Amazonian Fish Genome Challenges Long-Held Assumptions About Asexual Reproduction
Amazonian Fish Genome Challenges Long-Held Assumptions About Asexual Reproduction
Jim Daley | Feb 15, 2018
Poecilia formosa, an all-female fish species, has a surprisingly robust genome. 
Blind Cavefish in Mexico Offer Clues to Sleep Regulation
Blind Cavefish in Mexico Offer Clues to Sleep Regulation
Catherine Offord | Feb 7, 2018
Two studies identify a signaling pathway that contributes to the fish’s sleeplessness.