Animals
Intricate silk helps net-casting spiders trap prey in webs
Rufous net-casting spiders can adjust the stiffness and stretchiness of their webs thanks to looping strands of silk.
HS-LS2-8
Evaluate the evidence for the role of group behavior on individual and species' chances to survive and reproduce.
More Stories in HS-LS2-8
- Plants
Yum! Flies swarm to a flower that smells like wounded ants
A type of Japanese dogbane emits the distress signal of injured ants — a particular scent — to draw in scavenging flies that end up pollinating its flowers.
- Animals
Flamingos hunt by creating their own underwater tornadoes
Chilean flamingos use their beaks and feet to create underwater whirlpools that suck in prey.
- Animals
Scientists Say: Kleptotrichy
Based on the Greek words for theft and hair, kleptotrichy is a more common bird behavior than people thought.
- Animals
Analyze This: Some bats feast on songbirds midflight
Sensor data reveal greater noctule bats chasing, catching and chewing on birds during nighttime hunts.
- Animals
Let’s learn about venom
A bite or puncture from a venomous critter can cause paralysis, flesh rot, organ failure and many more violent — and sometimes fatal — symptoms.
- Life
Scientists Say: Biodiversity
The coral reefs at Komodo, one of the Lesser Sunda Islands in Indonesia, are among the most diverse ecosystems on Earth.
- Planets
The desert planet in ‘Dune’ is pretty realistic, scientists say
Humans could live on the fictional planet Arrakis from Dune. But thankfully giant sandworms probably could not.
- Animals
See how hummingbirds sneak through small spaces
Anna’s hummingbirds can use a couple of different techniques to get through gaps smaller than their wingspan.
- Genetics
A protein in sweat may protect people from Lyme disease
That protein stopped the disease-causing bacterium from growing in lab dishes or infecting mice.
