From Molecules to Organisms: Structures and Processes
- Brain
Scientists may have finally found how catnip repels insects
The plant deters mosquitoes and fruit flies by triggering a chemical receptor that, in some animals, senses pain and itch.
- Brain
Scientists Say: Neuron
Neurons are the foundational cells in the nervous system. They pass along and process information using electrical signals.
- Health & Medicine
Teen depression linked to how the brain processes rewards
Depression in teens alters their brains’ pathways in ways that may put those kids at risk of lifelong mental-health problems — unless they get help.
- Animals
Scientists Say: Egg and sperm
An egg or a sperm cell contains half of the normal genes an organism needs. They fuse together to form a new individual.
- Health & Medicine
Some microbial hitchhikers may weaken body’s attack on COVID-19
New research identifies an altered mix of microbes in the body — ones commonly seen in people with poor diets — that may worsen coronavirus disease.
- Brain
Active bodies build stronger brains
Aerobic fitness and physical activity correlate with widespread brain health in adolescents, according to a new imaging study in England.
- Health & Medicine
Some young adults will volunteer to get COVID-19 for science
Researchers will soon give some healthy people the new coronavirus. Their young volunteers have agreed to get sick to speed coronavirus research.
- Brain
New technology can get inside your head. Are you ready?
New technologies aim to listen to — and maybe even change — your brain activity. But just because scientists can do this, should they?
- Animals
Scientists Say: Organelle
An organelle is a part of a cell with a particular function. Like organs. But for cells.
- Health & Medicine
Space travel may harm health by damaging cells’ powerhouses
Biochemical changes after going to space suggest that harm to cells’ energy-producing structures, called mitochondria, could explain astronauts’ health issues.
- Animals
Explainer: Insects, arachnids and other arthropods
Arthropods are all around us, but identifying them can be hard. To start, look at the four main groups: chelicera, crustaceans, myriapods and insects.
- Animals
Camels have been dying after mistaking plastic for food
Plastic waste has been building up in the guts of some camels. It may now be killing off one percent of them in the United Arab Emirates each year.
