Life
- Humans
The earliest known hominid interbreeding occurred 700,000 years ago
The migration of Neandertal-Denisovan ancestors to Eurasia some 700,000 years ago heralded hookups with a resident hominid population.
- Life
How African turquoise killifish press the pause button on aging
The fish’s embryos can enter a state of suspended growth to survive dry spells. A study shows that state protects them from aging, and hints at how.
- Life
A new lizard parasite is the first known to move from mom to baby
Nematodes were found living in a lizard’s ovaries and the braincase of her embryos — the first evidence of a reptile parasite that jumps generations.
- Animals
One blind, aquatic salamander may have sat mostly still for seven years
Olms may live for about century and appear to spend their time moving sparingly.
- Neuroscience
Living brain tissue experiments raise new kinds of ethical questions
An ethicist describes the quandaries raised by working with tissue involved in human awareness.
- Life
Microbiologists took 12 years to grow a microbe tied to complex life’s origins
Years of lab work resulted in growing a type of archaea that might help scientists understand one of evolution’s giant leaps toward complexity.
- Health & Medicine
Coronavirus’s genetic fingerprints are used to rapidly map its spread
Fast and widespread scientific data sharing and genetic testing have created a picture of how the new coronavirus spreads.
- Animals
Snakes suffered after a frog-killing fungus wiped out their food
A frog-killing fungus that swept through Panama had a hidden effect. A new study finds that snake diversity declined post-fungus at one field station.
- Animals
Jellyfish snot can sting swimmers who never touch the animal
Researchers have found mobile cellular blobs coated with stinging cells in mucus from a jellyfish that sits upside-down on the seafloor.
- Animals
With a litter of tactics, scientists work to tame cat allergies
New research may reduce the allergen levels of house cats or make people less reactive to our feline friends.
- Humans
Some West Africans may have genes from an ancient ‘ghost’ hominid
A humanlike population undiscovered in fossils may have passed helpful DNA on to human ancestors in West Africa starting as early as 124,000 years ago.
- Life
Bats’ immune defenses may be why their viruses can be so deadly to people
A new study of cells in lab dishes hints at why viruses found in bats tend to be so dangerous when they jump to other animals.
