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A monogenean flatworm
Ecologists Use Museum Specimens to Dig into the Parasitic Past
New techniques to quantify what lived in and on preserved animals throw light on how parasite abundance has changed over time.
Ecologists Use Museum Specimens to Dig into the Parasitic Past
Ecologists Use Museum Specimens to Dig into the Parasitic Past

New techniques to quantify what lived in and on preserved animals throw light on how parasite abundance has changed over time.

New techniques to quantify what lived in and on preserved animals throw light on how parasite abundance has changed over time.

marine biology, evolution

Photo of fish in the Haemulidae family
Fish Are Chattier Than Previously Thought
Connor Lynch | May 2, 2022 | 5 min read
Once thought to be silent, fish turn out to produce a range of vocalizations—so polluting the oceans with noise could pose a danger to them.
Chelonibia testudinaria barnacle on turtle shell
Some Barnacles Can Move Around to Improve Feeding Position
Chloe Tenn | Oct 6, 2021 | 7 min read
The Scientist spoke with marine biologist and barnacle researcher John Zardus about why turtle barnacles—previously thought to be immobile—in fact slowly travel. He thinks the answer is food.
A blue coelacanth with white speckles in the ocean
African Coelacanths May Live to Be 100: Study
Catherine Offord | Jun 18, 2021 | 2 min read
This evolutionarily ancient fish species has a lifespan that’s around five times longer than previously thought, and a gestation time of more than five years.
Cuttlefish, cephalopod, mollusk, mollusca, animal behavior, marshmallow test, cognition, intelligence, evolution
Cuttlefish Delay Gratification, a Sign of Smarts
Asher Jones | Mar 5, 2021 | 8 min read
The cephalopods resisted temptation for up to 130 seconds to earn their favorite food, hinting at sophisticated cognitive abilities such as planning for the future.
a photo of fish swimming
Fish Steals Bioluminescence from Prey
Abby Olena, PhD | Jan 9, 2020 | 3 min read
Rather than making its own light, a shallow-water marine fish gets all the tools that it needs for bioluminescence production from eating tiny, glowing crustaceans.
Image of the Day: Brittle Star
Emily Makowski | Nov 20, 2019 | 2 min read
This marine animal looks like a sea star, but don’t be fooled.
The Narluga: New Insights from Old Bones
Ashley Yeager | Oct 1, 2019 | 4 min read
DNA analysis of a bizarre, 30-year-old whale skull serves as a reminder of the secrets that museum specimens keep about the natural world.
spinyfin Diretmus argenteus deep sea vision fish photopigment opsin
This Deep-Sea Fish Has the Most Types of Opsins Among Vertebrates
Katarina Zimmer | May 9, 2019 | 4 min read
The silver spinyfin has an extraordinary diversity of rod photopigments, which researchers propose may allow it to see color in the deep, dark sea.
fossil crab new species Callichimaera perplexa cretaceous Colombia USA
Image of the Day: Crab Legs
Chia-Yi Hou | May 1, 2019 | 1 min read
A crab fossil new to scientists lived in the age of dinosaurs in what is now Colombia and the US.
Fastest-Ever Cell Contractions Observed in Primitive Invertebrate
Abby Olena, PhD | Dec 13, 2018 | 4 min read
The microscopic marine animal Trichoplax adhaerens may use rapid changes in cell shape to avoid being ripped apart by forces in the ocean.
Coral Reef Scientist Ruth Gates Dies
Catherine Offord | Oct 31, 2018 | 2 min read
Gates was director of the Hawaii Institute of Marine Biology and a strong advocate for coral conservation.
Deadly Wasting Syndrome Genetically Altered Sea Stars: Study
Sukanya Charuchandra | Jun 19, 2018 | 1 min read
The surviving animals may have evolved genes that provided an advantage in fighting the disease.  
Amazonian Fish Genome Challenges Long-Held Assumptions About Asexual Reproduction
Jim Daley | Feb 14, 2018 | 2 min read
Poecilia formosa, an all-female fish species, has a surprisingly robust genome. 
Insects’ Neural Learning and Memory Center Discovered in Crustaceans
Catherine Offord | Dec 1, 2017 | 4 min read
Aggressive little marine predators, mantis shrimps possess a mushroom body that appears identical to the one found in insects.
Coastal Critters Make Epic Voyages After 2011 Tsunami
Ashley Yeager | Sep 28, 2017 | 3 min read
Marine species survived rafting thousands of kilometers on debris swept into the water by the giant wave, scientists say.
Sea Anemones Illuminate the Evolution of Embryo Development
Abby Olena, PhD | Sep 11, 2017 | 4 min read
A study of a simple marine animal suggests that the common ancestor of cnidarians and bilaterians may have had three germ layers instead of two.
Pollution Drives Marine Reptile Color Change
Bob Grant | Aug 11, 2017 | 2 min read
The turtle-headed sea snake is losing its stripes, and researchers suggest that the change reflects adaptation to fouled oceans.
Capsule Reviews
Bob Grant | May 1, 2016 | 4 min read
Sorting the Beef from the Bull, Cheats and Deceits, A Sea of Glass, and Following the Wild Bees
Sugar Time
Catherine Offord | Mar 1, 2016 | 2 min read
Metabolic activity, not light, drives the circadian clock in cyanobacteria.
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