Tick tock: Time to sleep? Sleeping parasite has own internal clock

A team of researchers from iMM Lisboa led by Luísa Figueiredo and in collaboration with Joe Takahashi's group from Southwestern University has shown for the first time that the parasite responsible for sleeping sickness, ...

How sunflowers track the sun

Plants tell time. Not the way we do – for example, it's 3.40pm, time to pick up the kids. But like animals, plants can sense that winter is coming and it's time to drop leaves.

Tomato domestication decelerated the circadian clock

All organisms, from bacteria to humans, exhibit endogenous rhythms controlled by the circadian clock. These rhythms are important for synchronization with the environment. Scientists at the Max Planck Institute for Plant ...

Why we need to keep adding leap seconds

Today at precisely 10am Australian Eastern Standard time, something chronologically peculiar will take place: there'll be an extra second between 09:59:59 and 10:00:00.

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