HS-LS2-8
Evaluate the evidence for the role of group behavior on individual and species' chances to survive and reproduce.
- 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
Africa’s poisonous rats are surprisingly social
Scientists confirm that the African crested rat can safely cover itself in poison and also find that the rodents may live in pairs — or even family groups.
- Brain
Loneliness makes our brains crave people
An area of the brain that lights up when hungry people see food also revs up when lonely people see social activities.
- Animals
Utah mink is first known case of the coronavirus in a wild animal
A wild mink appears to have picked up the novel coronavirus from farmed animals. Such spread in the wild does not appear common.
- Animals
Scientists Say: Lachryphagy
Some insects land on the eyeballs of larger animals. They are seeking out the salt and proteins in the animal’s tears.
- Animals
Around the world, birds are in crisis
Human activities around the world are threatening bird species. Numbers of even some of the most common species are starting to fall.
- Life
Ogre-faced spiders listen closely to snatch bugs from the air
Ogre-faced spiders can hear prey sneaking around behind them. Low frequencies can trigger a blind, backwards attack.
- Plants
Please do not touch the Australian stinging tree
Stinging-tree leaves look soft and inviting, but one touch delivers agony. Structurally, the plant's painful chemical looks a lot like spider venom.
- Health & Medicine
Third major vaccine shows great promise against COVID-19
This vaccine, which may be easier to get to the public, appears to be 90 percent effective at halting disease and maybe spread of the new coronavirus.
- Health & Medicine
Scientists Say: Puberty
Puberty is a time when hormones surge and people develop the ability to have children. But it’s so much more than that.
- Health & Medicine
Moderna vaccine for COVID-19 appears nearly 95 percent effective
A second coronavirus vaccine appears super effective in preventing people from being sickened by COVID-19.
- Animals
This snake rips open a living toad to feast on its organs
A particularly gruesome way to kill may help small-banded kukri snakes avoid a deadly poison secreted from the neck and backs of some toads.
