Sister blog of Physicists of the Caribbean in which I babble about non-astronomy stuff, because everyone needs a hobby

Saturday, 27 August 2016

Slugs that eat baby birds

Ewwwww ewww ewww eww eww ewwwwwwwwwwww !

She and Justyna Chachulska, a colleague at the University of Zielona Góra in Poland, were studying common whitethroat birds near Wroclaw, in Poland, when they spotted a slug of the Arion genus in a nest with newly hatched chicks. The next day, the slug was gone, and the chicks were dead with severe injuries on their bodies that hinted at the slug as the culprit.

“When a slug finds itself inside a nest – probably accidentally, or maybe by actively searching for this type of food – it just starts foraging on the living nestlings using its radula, or tongue covered in tiny teeth,” says Turzańska. “The nestlings are unable to defend themselves and are eaten alive.”

Surprisingly, the birds’ parents don’t seem to defend them, perhaps because such predation does not happen often enough for them to have evolved a defence response. A blackcap was even seen incubating a slug feeding on dead chicks.

https://www.newscientist.com/article/2102924-monster-slugs-are-devouring-defenceless-baby-birds-in-nests/?utm_medium=Social&utm_campaign=Echobox&utm_source=Facebook&utm_term=Autofeed&cmpid=SOC%257CNSNS%257C2016-Echobox

8 comments:

  1. That's nature for you! And probably natural selection - nesting low to the ground is a bad idea!

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  2. Why does he post this stuff? Aarrgghhh.

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  3. Eww indeed. Strange though...I'm fond of snails, but definitely wouldn't give a slug the time of day. Well, now I have a good reason: chick chomping. My back doorstep is a veritable slug nightspot - and I just remembered, I actually got a picture (a rubbish one) of two of them in the throes of.. well..slugual intercourse. The only time I ever saw slug sex before, was on telly, being explained by David Attenborough. So that was nice.

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  4. Don't adult birds feed on slugs? Atleast Chickens do ja. What a fascinating dynamics.

    ReplyDelete

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