News
- Physics
The fastest way to heat certain materials may be to cool them first
A theoretical study reveals that, in certain situations, some materials might heat up more quickly after first being cooled.
- 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.
- 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.
