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Leopard gecko lizards on the rock, cute lizards that are easy to care for, eublepharis macularius, animal closeup; Shutterstock ID 2551815383; purchase_order: -; job: -; client: -; other: -

Which animals can recognise individual people? Part 3

One reader explains how a lamb鈥檚 ability to recognise her led to a happy reunion

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3BHN5M7 A woman holds a sign that reads Greed is not a virtue during a protest across the street from Florida Congresswoman Maria Elvira Salazar's Office.

This week鈥檚 new questions

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Neon Welcome signboard retro style, Toilet sign with boy, girl figure. Glowing inscription on dark red brick background. Suitable for night outdoor banner, advertisement, shop, night club. 3D render.; Shutterstock ID 2265283835; purchase_order: -; job: -; client: -; other:

Do you wake up needing to pee, or need to pee because you鈥檝e woken up?

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Child's Spinning Top Toy; Shutterstock ID 365058569; purchase_order: -; job: -; client: -; other:

What would happen if a spinning disc neared the speed of light? Part 2

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Leopard gecko lizards on the rock, cute lizards that are easy to care for, eublepharis macularius, animal closeup; Shutterstock ID 2551815383; purchase_order: -; job: -; client: -; other: -

Which animals can recognise individual people? Part 2

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Planet in water - Moon. Science fiction art. Solar system. Elements of this image furnished by NASA; Shutterstock ID 579784837; purchase_order: -; job: -; client: -; other:

This week鈥檚 new questions

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Child's Spinning Top Toy; Shutterstock ID 365058569; purchase_order: -; job: -; client: -; other:

What would happen if a spinning disc approached the speed of light?

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CHEETAH acinonyx jubatus, Adult running through Savannah ; Shutterstock ID 1652757304; purchase_order: -; job: -; client: -; other:

Must the evolution of an adapted trait in nature reach a limit? Part 2

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2CA4Y7K Comet crashing into earth

How would we spot an antimatter comet in our solar system? Part 2

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cofee cup on the sand at the sunset; Shutterstock ID 1450632401; purchase_order: -; job: -; client: -; other:

This week鈥檚 new questions

I am in an arid desert with a flask of caffeinated coffee. Should I drink it, or will its diuretic effects speed my demise? Animals seem to respond to music when it is played to them, but what do they hear?

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Must the evolution of any adapted trait in nature reach a limit?

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If an antimatter meteor came into our solar system, how would we know?

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Should bubble wrap face the inside or outside of the object? Part 2

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This week鈥檚 new questions

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