Image of the Day: Fight Club
Image of the Day: Fight Club
South American hummingbird males were caught on camera poking and pinching each other with bills adapted for fighting.
Image of the Day: Fight Club
Image of the Day: Fight Club

South American hummingbird males were caught on camera poking and pinching each other with bills adapted for fighting.

South American hummingbird males were caught on camera poking and pinching each other with bills adapted for fighting.

Image of the Day
Image of the Day: What We’ve Dumped
Image of the Day: What We’ve Dumped
Carolyn Wilke | Jan 10, 2019
Researchers collected trash that washed up at Gulf Coast shoreline sites over two years. Most of it was plastic.
Image of the Day: Wisdom Teeth Lost
Image of the Day: Wisdom Teeth Lost
Carolyn Wilke | Jan 9, 2019
A study of tiny monkey skulls and teeth suggests that shrinking body size didn’t crowd out wisdom teeth during evolution.
Image of the Day: It’s a Shark!
Image of the Day: It’s a Shark!
Carolyn Wilke | Jan 8, 2019
A newly developed underwater ultrasound reveals a fetal shark swimming between the two uteri of its mother.
Image of the Day: Embryo in Blue
Image of the Day: Embryo in Blue
Carolyn Wilke | Jan 7, 2019
A bright blue stain highlights the sensory nerves of a developing mouse embryo.
Image of the Day: Nature by Hand Image of the Day: Nature by Hand
Image of the Day: Nature by Hand
Carolyn Wilke | Jan 4, 2019
Scientist D. Allan Drummond’s study of life in sculpture aims to provoke curiosity and wonder about the world.
Image of the Day: In Sync
Image of the Day: In Sync
Carolyn Wilke | Jan 3, 2019
At playtime together, parents’ brain activity mimics that of their infant children.
Image of the Day: Light Salve
Image of the Day: Light Salve
Carolyn Wilke | Jan 2, 2019
Researchers used infrared light to relieve itchy mice.
Image of the Day: Shoots Up
Image of the Day: Shoots Up
Ashley Yeager | Dec 14, 2018
During plants’ cell division, mother cells give daughter cells a signal to show them which way is up.
Image of the Day: Blood and Guts
Image of the Day: Blood and Guts
Carolyn Wilke | Dec 13, 2018
Researchers find that stem cells in the human intestine may provide up to 10 percent of circulating blood cells.