Animals
Some Antarctic fish arrange their nests into odd shapes
Scientists found nests organized into curves, clusters and ovals on the Antarctic seabed. Such groupings may protect the fish eggs from predators.
By Carly Kay
HS-LS2-6
Evaluate the claims, evidence, and reasoning that the complex interactions in ecosystems maintain relatively consistent numbers and types of organisms in stable conditions, but changing conditions may result in a new ecosystem.
More Stories in HS-LS2-6
- Climate
Some tree leaves are finding it too hot for photosynthesis
Earth’s ongoing fever threatens to push entire forests toward this heat limit — and possible death.
- Earth
Analyze This: Tropical forests have gotten patchier
Although many of the world's forests have gotten less fragmented since 2000, tropical forests have gotten more chopped up, putting animals at risk.
- Animals
Explainer: What is mpox (formerly monkeypox)?
Once rare, the viral disease monkeypox exploded onto the global scene for the first time in 2022.
- Animals
Dogs and other animals could aid the spread of monkeypox
Now that monkeypox has spread to a dog, researchers fear other species could help the virus become widespread outside of Africa for the first time.
- Animals
Some Greenland polar bears are surviving with very little sea ice
The ‘glacial mélange’ on which they’ve come to rely — a mix of ice, snow and slush — could be a temporary refuge for some polar bears.
- Life
Explainer: What is an endangered species?
Threats such as climate change and habitat loss can put species at risk of going extinct. Different words describe that risk.
- Life
In blazing heat, some plants open leaf pores — and risk death
When heat waves and droughts collide, water is precious. Some thirsty plants try to cool off by opening tiny pores — only to lose water even faster.
- Animals
Rewilding returns lost species to strengthen ecosystems
Restoring the missing species can help undo human-caused problems by aiding forests, slowing climate change and reducing wildfires.
- Animals
Explainer: What is an invasive species?
These foreign organisms hitchhike, spread widely and stir up trouble in native ecosystems.
