杏吧原创

Side view of a funny cheerful baby girl wearing Santa hat, standing inside a crib in a room during Christmas time.

This week鈥檚 new questions

Why are human babies so reluctant to go to sleep? And I can see how different grunts could come to mean "bear", "deer" or "run", but how do grammatically complex languages get their cases and declensions?

Many living earthworms for fishing in the soil, background; Shutterstock ID 1932989285; purchase_order: -; job: -; client: -; other: -

Can worms regenerate if they are cut in half longitudinally?

An artist's illustration of the longest black hole jet system ever observed. Nicknamed Porphyrion after a mythological Greek giant, these jets span roughly 7 megaparsecs, or 23 million light-years

What would happen if a black hole jet hit the sun or Earth?

Group of Asian friends having fun enjoying beach camping in summer

Is music an essential part of human evolution? Part 2

J7JGYD Cuban Rock Iguana, Cyclura nubila, Jardines de la Reina, Cuba

This week鈥檚 new questions

CY810A Senior / mature man (aged 71) humorous portrait with prominent bushy wild unkempt eyebrows

Why do we start growing lots of ear, nose and eyebrow hair as we age?

Close up of a spinning globe on black; Shutterstock ID 22230961; purchase_order: -; job: -; client: -; other: -

How long will it be before the rules for leap years need revision?

Walking highland cattle on sunset, scottish cow; Shutterstock ID 2496920209; purchase_order: -; job: -; client: -; other: -

This week鈥檚 new questions

Volcano Karymsky explosion on Kamchatka; Shutterstock ID 1990974674; purchase_order: -; job: -; client: -; other: -

Could a huge, prolonged volcanic eruption happen again?

2H6020J Few pedestrians on the rather busy street in metaverse conceptual reality

Is there evidence disproving that we are part of a simulation? Part 2

Our readers 鈥� simulated or otherwise 鈥� continue to tackle this thorny issue, invoking the possibility of higher dimensions to explain how such a complex simulation could exist

This week鈥檚 new questions

Could there be smaller universes in the particles we know of?

Is music an essential part of human evolution?

This week鈥檚 new questions