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Both male and female killer whales will remain with their mothers throughout their lives. Image: David Ellifrit/Centre for Whale Research

Why do whales and humans have such long menopause?

Long menopause allows killer whales to care for sons.

A storm is brewing in Mali, presumably over dry soils. Image: F. Guichard & L. Kergoat, AMMA project, CNRS copyright

How accurate are the weather models that predict thunderstorms?

The forecast is sunny, but there’s a slight chance of chaos.

Can you judge where the halfway point is? Image: Boule/Shutterstock

Can the shape of the glass affect your drinking habits?

Have you ever finished a drink almost twice as fast as your friends?

Enzymes are often thought to be specific, catalysing only one reaction in a cell (left), but some more promiscuous enzymes have many functions and catalyse many reactions in a cell. Credit: Courtesy of Systems Biology Research Group, UC San Diego, Jacobs School of Engineering

Why are some enzymes so promiscuous?

Enzymes are meant to be specific, right?

A baby tortoise emerging from its amniotic egg. Image: Wikipedia

Did the egg come first?

The egg came first, in amniotes at least.

Mitochondria (blue) convert food into energy for the nuclei (yellow) and the rest of our cells. Image: Heiti Paves/Shutterstock

Why do women live longer than men?

Aussie women have an average lifespan of 84 years, while the men have an average of 80. The reason why could lie in our genes.

Sneezing dispels irritating particles from the nose. Image: Shutterstock

Why do we sneeze?

Sneezing helps us reboot our body.

One of the atsronauts shaves his head using a razor with a vaccum attachment near the sleeping quarters. Image: ESA/NASA

How do astronauts sleep in space?

After a long day’s work, you’re ready for a good night’s sleep. But it’s a little different if you’re weightless.

Running with proper forefoot or midfoot strike can be safe. Image: Shutterstock

Is it better to run without shoes?

With the London Olympics fast approaching we have a few tips to assist your athletic performance.

Astaxanthin is the pigment that gives prawns that bright red colouring. Image: Shutterstock

Why do shellfish change colour when cooked?

  The answer to this question lies in the breaking of specific chemical bonds by heat.

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