"a" is a singular term. "a pine cone", "a banana", and "a piano" are also singular terms. Therefore, "a red howler" connotes one red howler. I'm guessing a "pack" of something is plural. "A pack of cigarettes", a "pack of wolves"= plural. Therefore, logically, one of something... a red howler is not a pack.
Now, if you had a bunch of red howlers (plural) instead of "a" red howler (singular)....they could probably be considered a pack.
No they are not
bannanas
Jaguars, pythons, even native peoples will eat howler monkeys.
A Howler Monkey eats a lot of fruit, but they also eat leaves and flowers.
Alouatta palliata is the most often used scientific name for the black howler monkey.
butt fruit
Red howlers are three species of howler monkey. Like most animals that aren't at the top of the food chain, they fear predators (although it's impossible for us to know how often they think about them). One of the main predators of the howler monkey are Harpes eagles.
red howler monkeys live in trinidad
Yes he is the fattest thing in the world and beyond!
Yes, the howler monkey is the loudest howler in the world. their howls can be heard up to three miles away.
The collective nouns for howler monkeys are: a troop of howler monkeys a cartload of howler monkeys
no, howler monkeys are safe.