HS-LS2-8
Evaluate the evidence for the role of group behavior on individual and species' chances to survive and reproduce.
- Animals
Reindeer can chew food in their sleep
Brain waves and behaviors suggest that reindeer can doze while chewing.
- Plants
Scientists Say: Marcescence
Autumn turns to winter, yet some trees' dead leaves keep hanging on.
- Animals
Spiders that fall into water use reflected light to find land
When elongate stilt spiders fall into water, they head for areas that don’t reflect light, studies show. This cue appears to signal dry land.
- Animals
Swimming in schools lets fish save lots of energy
Each tail flap uses less than half as much energy than swimming solo, making it easier for fish to catch their breath after an underwater sprint.
- Animals
Paw-print DNA lets scientists track out-of-sight polar bears
This environmental DNA can aid in conserving species that are hard or dangerous to observe.
- Life
Scientists Say: Protist
Unified by a few key traits, these diverse organisms come in all shapes and sizes.
- Animals
Here’s how kingfishers avoid concussions during high-speed dives
Understanding the genetic adaptations that protect the birds’ brains as they dive might one day offer clues to protecting human brains.
- Animals
Horned lizards and snakes tend to ambush their prey
The reptiles’ horns could help or hinder during foraging, depending on how they hunt. This might be why horns evolved in some species and not others.
- Oceans
Shading corals during midday heat can limit bleaching
Shading coral reefs during the sunniest part of the day may help corals survive marine heat waves.
- Animals
Scientists Say: Camouflage
Plants and animals alike hide in plain sight using this sneaky strategy.
- Environment
Pumping cold water into rivers could help fish chill out
Hundreds of salmon, trout and other fish sought shelter from summer heat in the human-made cool zones. These areas may help fish adapt to river warming.
- Animals
These jellyfish can learn without brains
No brain? No problem for Caribbean box jellyfish. Their simple nervous systems can still learn, a study suggests.
