Life
We summarize the week's scientific breakthroughs every Thursday.
- Animals
Some tadpoles don’t poop for weeks. That keeps their pools clean
Eiffinger’s tree frog babies store their solid waste in an intestinal pouch, releasing less ammonia into their watery cribs than other frog species.
- Health & Medicine
An mRNA vaccine protected mice against deadly intestinal C. difficile bacteria
An mRNA vaccine that targets several aspects of C. difficile’s ability to cause severe disease prevented major symptoms and death in mice.
- Neuroscience
Scientists have traced all 54.5 million connections in a fruit fly’s brain
By tracing every single connection between nerve cells in a single fruit fly’s brain, scientists have created the “connectome,” a tool that could help reveal how brains work.
- Animals
Dolphins’ open-mouth behaviors during play are like smiles, a study claims
Experts urge caution in calling bottlenosed dolphins’ gesture a humanlike “smile,” but agree it seems to be important for how the animals communicate.
- Animals
Coyotes have the face muscles for that ‘sad-puppy’ look
The ability to make heart-melting stares may not be the fruit of dog domestication if their still-wild cousins have the power to do it too.
- Life
The fruit fly revolutionized biology. Now it’s boosting science in Africa
African researchers are using Drosophila melanogaster fruit flies to advance studies of genetics, biomedicine, developmental biology, toxicology and more.
- Animals
Bird nests made with a toxic fungus seem to fend off attacking ants
Two species of birds in Costa Rica build nests in trees defended by ants. Ants that encounter the horsehair fungus in the nests develop odd behaviors.
- Animals
‘Night Magic’ invites you to celebrate the living wonders of the dark
In the book ‘Night Magic,’ Leigh Ann Henion writes of encounters with salamanders, bats, glowworms and other life-forms nurtured by darkness.
- Animals
This fish has legs — and it uses them for more than just walking
Some sea robins have taste buds on their six crablike legs that help the fish ferret out prey buried in sand as they walk.
- Neuroscience
A study in mice hints at a new way to treat spinal cord injuries
The finding suggests that a drug to ease swelling can speed recovery and stop cell death.
- Paleontology
Some of Earth’s extinct giants may have been smaller than thought
Evolving techniques and data indicate some ancient giants like Dunkleosteus and Megalodon may have been smaller than initial estimates suggested.
- Psychology
A brain network linked to attention is larger in people with depression
Brain scans revealed that teenagers with larger attention-driving networks were more likely to develop depression.
