Animals
Frozen poop reveals Ice Age squirrels’ ecosystem
Ancient ground squirrels were anything but picky eaters. Genetic material from grasses to woolly mammoths popped up in frozen squirrel poop.
HS-LS2-4
Use a mathematical representation to support claims for the cycling of matter and flow of energy among organisms in an ecosystem.
More Stories in HS-LS2-4
- Plants
Let’s learn about plant movement
Some plants use their powers of superspeed to spread spores, while others use it to snatch up prey.
- Health & Medicine
Why you shouldn’t just brush off dandruff
Research points to certain yeast and bacteria as culprits behind some dandruff. Special shampoos or prescription cleansers can help.
- Animals
Tardigrades survive harsh conditions by almost dying. Here’s how
Under stress, a chemical change signals these water bears to switch between live and mostly dead.
- Plants
Rampaging vines are slowly strangling tropical forests
Called lianas,these vines are growing out of control. They may cause tropical forests to absorb less carbon dioxide — worsening climate change.
- Life
Scientists Say: Mycelium
These fibrous networks are the reason plants think fungi are such "fun guys.”
- Ecosystems
Scientists Say: Food web
All the species in an ecosystem and the feeding relationships between them get summed up with this handy picture.
- Animals
This parasite makes wolves more likely to become leaders
Gray wolves infected with Toxoplasma gondii make riskier decisions. This makes them more likely to become pack leaders or strike out on their own.
- Animals
Award-winning photo captures ‘zombie’ fungus erupting from a fly
The winner of the 2022 BMC Ecology and Evolution photo competition captures the cycle of life and death in the Amazon rainforest in Peru.
- Chemistry
Ponds made to control floods can spew climate-warming gases, study finds
Younger stormwater ponds can release more carbon in gases than they absorb, a study finds. That could aggravate global warming.
