Animals
Analyze This: Primates may have evolved in the cold
Scientists thought the ancestor of humans and apes lived in the tropics. A new study points to a chilly location instead for primate evolution.
HS-LS4-5
Evaluate the evidence supporting claims that changes in environmental conditions may result in: (1) increases in the number of individuals of some species, (2) the emergence of new species over time, and (3) the extinction of other species.
More Stories in HS-LS4-5
- Life
Bacterial fossils exhibit earliest hints of photosynthesis
Microscopic fossils from Australia suggest that some bacteria evolved structures for oxygen-producing photosynthesis by 1.78 billion years ago.
- Animals
Megalodons may have become megahunters by running hot
O. megalodon sharks were warm-blooded mega-predators. But when food sources dwindled, colder-blooded sharks may have had an evolutionary edge.
- Physics
In a breakthrough experiment, fusion gave off more energy than it used
The sun creates energy through nuclear fusion. Now scientists have too. This achievement raises hopes for developing a new type of clean energy.
- Animals
A love of small mammals drives this scientist
Alexis Mychajliw’s science is driven by her love of animals. She now looks to tar pits and fossilized poop to understand ancient ecosystems.
- Earth
Not one, but two asteroids might have ended the age of dinosaurs
A craterlike structure found off the coast of West Africa might have been formed by an asteroid that struck around the time dinosaurs went extinct.
- Animals
Ancient ‘ManBearPig’ mammal lived fast — and died young
Developing in the womb for a while — but being born ready to take on the world — may have helped post-dinosaur mammals rise to dominance.
- 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
‘Mystery monkey’ could mean its parent’s species may be in trouble
Changes to monkeys’ habitats — including some forest loss to oil palm plantations — might explain why this animal’s parents mated.
