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The dog was probably freaked out by the weird costume. Humans do it all the time (I've been seeing Halloween decorations for sale since early August, which is terrifying) but we generally comprehend what's going on. Dogs may not fully understand the idea of a costume, much as a human infant might be scared by masks or beards (or the sudden removal ...


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That is a threat face. Barbary macaque threat faces often appear with a brow raise, lowered head, and an o-shaped mouth, sometimes with and sometimes without a vocalization. Given the context you described it is not surprising the girl received a threat. *Based on personal research experience


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It looks like it is trying too threat. Source: Individual differences in scanpaths correspond with serotonin transporter genotype and behavioral phenotype in rhesus monkeys (Macaca mulatta)


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Insomnia most certainly occurs in other animals. One interesting example is the case of insomnia in Drosophila melanogaster. In this study 3 day old male and female flies that demonstrated reduced sleep time were crossed together over 60 generations to create flies insomnia-like (ins-l) that sleep less than 60 minutes a day compared to 800 min a day in their ...


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Suggested Reads: Evolutionary Psychology By Lance Workman, Will Reader Evolution of Human Behavior: Primate Models edited by Warren G. Kinzey Social Behaviour of Children: A Cross Cultural Assessment By Ralph E. S. Tanner


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It all depends on hunger. As in comment (@Remi.b), it has been mentioned, an animal won't throw if they are starving. For example monkeys/apes only eat part of a fruit and then throw the rest. Monkeys and apes can differentiate between good and bad part of the fruits. So, they eat what they can and if the color looks different (or however they ...


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Crows have been known to use human actions in order to accomplish their own purposes: read this story about them using cars and waiting for the lights to change at a crossroads. Then of course, the question is whether they have a specific purpose in your case with these sticks, or whether it's just... for the fun of it?


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Second paper is an article in science Daily and have a pretty decent source from Texas A&M University. It's much better than the first as it is un-sourced post on yahoo answers. Source: "Male Seahorses Are Nature's Mr. Mom, Researchers Say." ScienceDaily. ScienceDaily, 2 May 2008. Why male seahorses gets pregnant? Genetic answer: May be because only ...


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There is a large population of birds that look like crows or ravens, yet fatter. They seem to be quite social and move around in large groups. First of all, this seems like a crow. Crows are very social birds, they live in flocks or murder. Theory: It may be a Mating Ritual? No! The have a very spectacular mating ritual!. Theory: It's ...



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