Male chimp using stone as hammer

• by luca-chimp

  It is interesting, in nearly all the clips where juveniles cracked nuts, they used wooden hammer. This male takes a big stone. Maybe, the stones are too heavy for the smaller chimps?

  Posted June 15, 2016 9:37 PM

• by MimiA scientist, moderator

  Hey @luca-chimp, good observation - check out this press release for more on the use of different hammer materials in chimpanzees https://www.mpg.de/5773119/Chimpanzee_tool_use

  and the paper is here: http://www.sciencedirect.com/science/article/pii/S0960982212003181

  Posted June 16, 2016 12:25 PM

• by MimiA scientist, moderator

  and some nice videos on how the juveniles learn to crack nuts 😃

  https://www.youtube.com/watch?v=i4EhNKL6ZD8

  https://www.youtube.com/watch?v=5Cp7_In7f88

  Posted June 16, 2016 12:33 PM

• by luca-chimp

  Thanks a lot, mimi, I knew these artice from MPI (I found it yesterday, when I researched after the tool using … I thought I had read that in one regions here are stone using in an another more wood  so it was an updating and interesting reading.
  But Im quite faszinated how very YOUNG in AgedViolet the kids are and can crack the nuts successfully.
  P.S: Interesting the BBC-Film (I didnt know this one, thanks) … it is a comletely different technique 😃

  Posted June 16, 2016 6:04 PM

• by MimiA scientist, moderator

  There is a nice wild chimpanzee foundation video i am trying to find with a great sequence too with the young ones 😃

  Posted June 16, 2016 10:56 PM

• by MimiA scientist, moderator

  Here it is! https://youtu.be/sMeMlChwo-o?t=10m30s

  Posted August 3, 2016 4:53 PM