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Bumblebees don't care about pesticide cocktails

In their natural environment, wild bees are exposed to various pesticides that can have a potentially toxic effect. A study by the University of Würzburg has now shown that bumblebees are relatively resistant to these products.

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The desert ant Cataglyphis nodus at its nest entrance.

Desert Ants: The Magnetic Field Calibrates the Navigation System

Desert ants find their way during an early learning phase with the help of the Earth's magnetic field. The associated learning process leaves clear traces in their nervous system. This is shown in a new study by a Würzburg research team.

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A typical behaviour: When the leafcutter ant Atta sexdens cuts pieces of leaves, it holds onto the leaf edge with its hind legs to determine the size of the cut.

With head and leg to the beautiful cut

How do leafcutter ants measure the size of the leaf pieces they cut off? A study by the University of Würzburg now provides answers.

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Left: A walking bumblebee with increased temperature of the chest and head area. Right: A sitting bumblebee with lower, constant temperature. The electrical responses of the eye in the middle show that the bumblebee processes visual stimuli faster while walking than while sitting.

Better vision through movement

When bumblebees move, their vision improves. Scientists at the University of Würzburg have now been able to prove this.

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