杏吧原创

Man looks to a huge brain. Mental capacity, cognitive processing, and human interaction. This is a 3d render illustration; Shutterstock ID 2341475275; purchase_order: -; job: -; client: -; other: -

This week鈥檚 new questions

If someone could have their life extended with no limit, would their brain eventually run out of storage space? And is the chemical composition of spider webs the same all over the world, or has it evolved differently in separate locations?

Blue and dark space landscape with planets and starry sky and mountains. Huge planet on the horizon volumetric lighting 3d rendered baackground.; Shutterstock ID 2208373835; purchase_order: -; job: -; client: -; other: -

Would you see further from a mountain on a large or a small planet?

Back view of 9 year old girl hiking, walking alone in the forest by the river with a backpack in early spring. Beautiful idyllic nature.; Shutterstock ID 2302035971; purchase_order: -; job: -; client: -; other: -

At what age would a child be capable of surviving in the wild? Part 2

R1D8PY Silverback western lowland gorilla sitting down to eat at Zoo Atlanta in Atlanta, Georgia. (USA)

This week鈥檚 new questions

Supernova explosion in the center of galaxy "Elements of this image furnished by NASA "; Shutterstock ID 1838493049; purchase_order: -; job: -; client: -; other: -

How would Earth be affected if Sirius were to go supernova?

HYMJ79 The famous prehistoric stone circle at Stonehenge on a bright spring day.

How did ancient Britons mark the solstices with Stonehenge? Part 2

close up the fly on the window, on the glass, the concept of sanitation, dangerous insects, insect repellent, copy space; Shutterstock ID 1168097506; purchase_order: -; job: -; client: -; other: -

Why can a fly enter my home easily, but not escape as easily? Part 2

explosion of atomic bomb on background of sky; Shutterstock ID 51881707; purchase_order: -; job: -; client: -; other: -

This week鈥檚 new questions

Back view of 9 year old girl hiking, walking alone in the forest by the river with a backpack in early spring. Beautiful idyllic nature.; Shutterstock ID 2302035971; purchase_order: -; job: -; client: -; other: -

At what age would a human child be capable of surviving in the wild?

Man opening door of retro refrigerator freezer.; Shutterstock ID 2275541755; purchase_order: -; job: -; client: -; other: -

Is it more efficient to leave the fridge open if pouring milk for tea?

Our readers clash over this one, with some saying yes, some it makes little difference - and some advocating a shift to black tea for maximum efficiency

Does having four legs aid dogs with climbing? Part 2

This week鈥檚 new questions

Why don鈥檛 animals other than humans get sick from uncooked food?

Has Earth鈥檚 shifting north magnetic pole affected migrating animals?