Howler Monkeys Part 4: References and Cited Works

I hope if you read this far in this four part series, that you enjoyed reading about one of the most enigmatic New World monkeys. Below is the list of works cited in the previous three parts, but I’m also going to include a few sources that are Internet accessible for those without quick access [...]

Howler Monkeys Part 2: Dietary Needs and Habits

Howler Photo by princessangel Milton’s Study on and Island in the Panama Canal Milton studied two groups of mantled howlers on Barro Colorado Island in the Panama Canal (1980) and discovered that while howlers don’t have to pursue their foods, neither can they use a “sit and wait” strategy. Their preference for seasonal foods presents [...]

Howler Monkeys Part 3: Vocalizations

Howler Photo by JeanKearn Perhaps the most familiar characteristic of the howler monkey are their vocalizations for which they are named. Howlers, both male and female, use their loud, lion-like roars (Fleagle 1999 p150) to advertise their presence and to warn or intimidate intruders (Kitchen 2004). Vocalizations may also provide auditory cues that reveal fighting [...]

Howler Monkeys Part 1: General Characteristics

 Afarensis has been doing his weekly “Know Your Primate” series, so I hope he won’t mind if I toss in my bit on the howler monkey. It was his series that inspired me and reminded me that I had this from a paper I wrote a while back. I’ll post this in two, maybe three, [...]

Gorillas Get Sodium From Tree Bark

I remember my Primate Evolution class and the mention that Gorillas chew bark and spit it out. The hypothesis, according to my professor, was (if I remember correctly) possibly they do this for some nutrient they cannot get elsewhere. As it turns out, new research has shown that decayed wood provides over 95% of the [...]