Early Humans May Have Dived Before They Ran
In the app: the whole story at your level, listening, the quiz and the word cards.
The same story at six levels
How the first sentence reads at every level, from A1 to C2.
- A1
Scientists have a new idea.
- A2
Researchers propose the dive first, run later hypothesis.
- B1
Researchers propose the dive first, run later hypothesis to explain human stamina.
- B2
Researchers propose a new explanation for human stamina.
- C1
For many years, what has long been the traditional view in science is that human stamina evolved primarily because early humans needed to chase animals over long distances on land.
- C2
For decades, the traditional view in evolutionary science has maintained that human stamina evolved primarily because early humans needed to chase animals over long distances on land.
Key words
Words from the B1 text, with their meaning.
- stamina
- The physical or mental strength to do something for a long time.
- hypothesis
- An idea or explanation for something that is based on known facts but has not yet been proved.
- endurance
- The ability to keep doing something difficult, unpleasant, or painful for a long time.
- altitude
- Height above sea level.
- fossil
- The shape of a bone, a shell, or a plant or animal that has been preserved in rock for a very long period.
- buoyancy
- The ability to float in water or other liquids.
Rewritten with AI from facts reported by Max Planck Society. Read the original for the full report.