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‘Celestial snapshot’ helps dung beetles navigate
Dung beetle
Like many insects, dung beetles rely exclusively on celestial clues to maintain their orientation.

Action takes place when the insect dances on top of its ball

Dung beetles take a “celestial snapshot” of the sun, moon and stars and use that image to navigate, according to new research.

Like many insects, dung beetles rely exclusively on celestial clues to maintain their orientation. However, the mechanism that allows them to use these clues for navigation is unknown.

Previous studies suggests that insects rely on intuition to predict the natural geographical relationship between celestial clues.

But now a new study, published in the journal Current Biology, shows that dung beetles do not rely on this. Instead, they appear to take a mental “snapshot” of the celestial scene, ‘even if that scene represents a physical impossibility for the real sky'.

The researchers also found that the beetles are able to maintain their bearing with respect to the celestial clues, only if they are visible when the snapshot is taken. This celestial snapshot takes place when the beetle performs a dance on top of its ball of dung to rotate its vertical axis.

Researchers say that this strategy for reading celestial signals is a ‘simple but efficient mechanism for straight-line orientation’.

Speaking to BBC News, lead researcher Dr El Jundi from Lund University said:  "In that situation they scan the sky and take a mental image of what the sky looks like and when they start rolling they try to match the actual visual scenery of the sky with the mental image they have stored before. And that brings them away in a straight line.”

Dr Jundi adds that their findings could help in the human development of driverless vehicles.

"Based on these results you could create robots or algorithms that could be incorporated into autonomous vehicles that could navigate without cues that humans input into the system," he said. 

 

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Birmingham Dogs Home makes urgent appeal

News Story 1
 Birmingham Dogs Home has issued an urgent winter appeal as it faces more challenges over the Christmas period.

The rescue centre has seen a dramatic increase in dogs coming into its care, and is currently caring for over 200 dogs. With rising costs and dropping temperatures, the charity is calling for urgent support.

It costs the charity £6,000 per day to continue its work.

Fi Harrison, head of fundraising and communications, said: "It's heart-breaking for our team to see the conditions some dogs arrive in. We really are their last chance and hope of survival."

More information about the appeal can be found here

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Avian flu confirmed at premises in Cornwall

A case of highly pathogenic avian influenza H5N1 has been detected in commercial poultry at a premises near Rosudgeon, Cornwall.

All poultry on the infected site will be humanely culled, and a 3km protection zone and 10km surveillance zone have been put in place. Poultry and other captive birds in the 3km protection zone must be housed.

The case is the second avian flu case confirmed in commercial poultry this month. The H5N5 strain was detected in a premises near Hornsea, East Riding of Yorkshire, in early November. Before then, the disease had not been confirmed in captive birds in England since February.

The UK chief veterinary officer has urged bird keepers to remain alert and practise robust biosecurity.

A map of the disease control zones can be found here.