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[[circled]] 30 [[/circled]]

[[underlined]]Cebus capucinus[[/underlined]], Oct. 1, 1960, III 

cage. Lots and lots of Q and QTW, with BT and Jud, by all the animals. In the midst of this incident, the 3 wild animals (on the ground at the time) did something peculiar. One of them suddenly jumped on the back of the other, just like a young animal. Then both continued BT, and occasional Q and QTW, and some Jud, obviously directed toward the captive animals inside the cage, while the one still remained on the back of the other. (I think, from the way they were standing, that the one on the back of the other may still have had all 4 feet (or hands) on the ground throughout all or most of the time it was on the back of the other.) Then the one on the back jumped off, and then jumped back on. Both animals continuing hostile behavior as before Then jumped off again Then the animal who had been jumped on before suddenly jumped on the back of the third wild animal!!! All 3 continued to utter Q's and QTW, and perform BT and Jud! All this happened within a very few seconds. Then the animals separated, as the burst of extreme hostility died down.

This incident would seem to indicate that jumping on the back of other animals (which I shall call "JOB") is an integral part of the hostile behavior of adults as well as young animals. Not perhaps as strongly an alarm or escape reaction as I thought before. The wild adults performing JOB today were certainly not greatly frightened.

About 15 minutes later, the three wild animals moved back onto the top of the captive animals' cage (after being away a little while). This provoked a little Q-ing and other hostile sounds by several animals At this time, after listening to one of the wild animals very carefully, [[underlined]] I decided that QTW and extreme L Trlls are absolutely identical [[/underlined]]!!!

After [[Phi symbol]] had been in the cage with the other animals for about 3/4 of an hour, it became engaged in several disputes with another young animal. Possibly the same animal it had been disputing with earlier. But th