behavior, evolution
Pancreatic Cell Size Negatively Relates to Lifespan in Mammals
Pancreatic Cell Size Negatively Relates to Lifespan in Mammals
Sukanya Charuchandra | Jun 19, 2018
Species with larger pancreatic cells tend to have shorter lives, according to a study.  
Image of the Day: Landing Blows
Image of the Day: Landing Blows
Sukanya Charuchandra | Jun 18, 2018
The smashing mantis shrimp is strategic in its attack on sea snails.  
Humans are Making Mammals Return to the Night Life
Humans are Making Mammals Return to the Night Life
Ashley Yeager | Jun 14, 2018
While shifts in behavior could help wildlife and people coexist, they might also affect the animals’ survival.
Organic Compounds Found in Martian Soil
Organic Compounds Found in Martian Soil
Sukanya Charuchandra | Jun 11, 2018
Researchers also found seasonal variations in atmospheric methane on the planet that may have a geological or biological origin.  
Image of the Day: Older and Wiser
Image of the Day: Older and Wiser
Sukanya Charuchandra | Jun 8, 2018
As the years go by, seabirds such as gannets get better at foraging.  
After Relocation, an Endangered Species Stops Avoiding Predator Scents
After Relocation, an Endangered Species Stops Avoiding Predator Scents
Abby Olena | Jun 6, 2018
Researchers find that conserving marsupials on a predator-free island dampens their avoidance behaviors, which could mean trouble for their reintroduction to mainland Australia.
Image of the Day: Black-Eyed Rage
Image of the Day: Black-Eyed Rage
Sukanya Charuchandra | Jun 6, 2018
When defensive, guppies display a warning sign to their counterparts. 
New Study Contradicts Previous Idea About Origins of South Americans
New Study Contradicts Previous Idea About Origins of South Americans
Sukanya Charuchandra | Jun 1, 2018
Divergent human lineages of North America intermingled before setting off to establish populations of Central and South America.  
Image of the Day: Cuddle Buddies
Image of the Day: Cuddle Buddies
Sukanya Charuchandra | Jun 1, 2018
Researchers studying macaques in Morocco find that socialization improves the monkeys’ odds of surviving the winter. 
Incomplete Immunity
Incomplete Immunity
Jim Daley | Jun 1, 2018
By combining experimental data with computer models, researchers were able to predict a pathogen’s evolution toward more virulence.