“…and today we’re talking about a monkey that pays for long distance. But more on that later.”
Description
- Tiny primate, about the size of a large squirrel compared to other tamarins
- Soft, silky fur in a mix of gray, black, and brownish hues
- Distinctive long, white mustache that droops like a hipster’s finest facial hair
- Give this monkey a pith helmet and a rifle and send him to the dark continent stat!
- Small, rounded head with dark, expressive eyes
- Slender limbs and a long, non-prehensile tail for balance
- Smooth skin under the fur, with a slightly leathery texture on hands and feet
Measure Up
Welcome to the beloved Measure Up segment. The official listener’s favorite part of the show! The part of the show when we present the animal’s size and dimension in relatable terms through a quiz that’s fun for the whole family. It’s also the part of the show that’s introduced by you when you send in audio of yourself saying, singing, or chittering the words Measure Up into ldtaxonomy at gmail dot com.
Body Length of the Emperor Tamarin
The Emperor Tamarin has a body length of 24.5 cm (9.65 inches). How many objects fit into the tamarin’s body length (if the object is shorter) or how many tamarins fit into the object’s length (if the object is longer)?
a) The length of an Amazonian piranha
A red-bellied piranha (Pygocentrus nattereri), native to the Amazon River, measures about 20 cm (0.2 meters or 7.87 inches) in body length for an average adult, per fish biology data.
b) The length of a Quechua blowgun dart
A Quechua blowgun dart, used by Indigenous peoples in Peru, measures about 40 cm (0.4 meters or 15.75 inches) long, based on ethnographic records.
c) The length of a Brazil nut pod
A Brazil nut pod (Bertholletia excelsa), from Amazonian trees, measures about 15 cm (0.15 meters or 5.91 inches) in diameter, per botanical data.
Question: How many fit into each body length comparison?
A) 3 Amazonian piranhas go into the body length of an Emperor Tamarin
B) 2.1 Emperor Tamarins go into the length of a Quechua blowgun dart
C) 1.6 Brazil nut pods go into the body length of an Emperor Tamarin
Weight of the Emperor Tamarin
The Emperor Tamarin weighs 475 grams (0.475 kg). How many objects fit into the tamarin’s weight (if the object is lighter) or how many tamarins fit into the object’s weight (if the object is heavier)?
a) The weight of an Amazonian macaw feather
A single flight feather from a red-and-green macaw (Ara chloropterus), native to the Amazon, weighs about 5 grams (0.005 kg), per wildlife estimates.
b) The weight of an Aymara reed boat model
A small model of an Aymara reed boat (balsa), crafted on Lake Titicaca in Bolivia, weighs about 1,000 grams (1 kg or 35.3 oz), per cultural artifact data.
c) The weight of a capybara pup
A newborn capybara pup (Hydrochoerus hydrochaeris), found in Amazonian wetlands, weighs about 1,500 grams (1.5 kg or 52.9 oz), per wildlife data.
Question: How many fit into each weight comparison?
A) 95.0 Amazonian macaw feathers go into the weight of an Emperor Tamarin
B) 3.1 Emperor Tamarins go into the weight of an Aymara reed boat model
C) 4.2 Emperor Tamarins go into the weight of a capybara pup
Fast Facts
- Range: Native to the rainforests of South America, primarily in Peru, Bolivia, and western Brazil.
- Habitat: Prefers dense, tropical rainforests, often living in the mid to upper canopy.
- Mating Behavior: Monogamous pairs lead small family groups, with the dominant female breeding and males helping raise the young.
- Diet: Omnivorous, munching on fruits, insects, small vertebrates, and tree sap.
- Social Behavior: Lives in tight-knit groups of 2-8, with cooperative care for infants.
- Predators: Faces threats from hawks, snakes, and small cats like ocelots.
- Lifespan: Can live up to 15 years in the wild, longer in captivity.
- Fun Fact: Their mustache isn’t just for show—it’s thought to help with social bonding and identification in their groups.
Major Fact: Long Distance Charge
Emperor Tamarins (Saguinus imperator) have a complex communication system that combines vocalizations, body language, and scent marking to coordinate group activities, maintain social bonds, and defend their territory.
They use diverse vocalizations that depend on their social and environmental context.
For long-distance communication, like staying connected with group members while foraging in dense rainforests, they produce high-pitched, bird-like whistles.
Close up, they use short, sharp chirps and trills. These vocalizations are typically associated with social interactions, conveying excitement, submission, or reinforcing bonds during activities like grooming or play.
In confrontational situations, like warding off intruders like hawks or snakes, they emit clicks and squeaks to express aggression or alarm.
Their long calls are particularly notable—louder and more sustained. These are super loud vocalizations, audible over 150 meters, used when leaving sleeping sites, during travel, and in territorial encounters.
Research shows that Emperor Tamarins have a repertoire of over a dozen distinct call types, with meanings that vary depending on pitch, duration, and context. This sophisticated vocal system allows them to navigate their complex social and environmental landscape effectively.
Body Language
Physical gestures and facial expressions play a significant role in their communication:
- Facial Expressions: Their iconic white mustache enhances facial visibility, likely aiding in visual signaling. Wide eyes, bared teeth, or raised hackles can indicate aggression, fear, or submission.
- Tail Movements: Rapid tail flicks or raised tails signal agitation or alertness, often during territorial disputes or when spotting a predator.
- Posturing: Dominant individuals may puff up their fur or adopt upright postures to assert authority, while subordinates may crouch or avert their gaze to show submission.
Scent Marking
Scent communication is critical for Emperor Tamarins, particularly for territorial and social purposes:
- They have specialized scent glands on their chest, genitals, and anus, which they rub on branches or other surfaces to leave chemical markers.
- Scent marks convey information about identity, reproductive status, and territory boundaries. The dominant female often marks more frequently to reinforce her status and claim resources.
- Group members sniff these marks to gather information, helping maintain group cohesion and detect intruders.
Ending
So enjoy the rainforest canopy, keep your fu man chu mustache groomed and tidy, and remember that communication is key like the emperor tamarin here in LDT.