Why does sloth fur part on the belly?

So rain runs off while hanging upside down

Sloth Fur Quiz: Algae, Moths and a Tiny Ecosystem

This sloth fur quiz looks closely at the shaggy coat of the world's slowest mammals. Play 10 interactive questions on grooved hairs that hold green algae, camouflage in the canopy, moths that live in the fur, weekly trips to the ground, how moths may help the algae, fur that parts on the belly so rain runs off, two-toed and three-toed sloths and slow metabolism.

Start Sloth Fur Quiz

🎯 Daily Trivia Challenge • 🧠 10 Questions • ⏱️ 150 Seconds

Question 1 / 10 Time: 150s

Region
Where do sloths live?
Color
What can make sloth fur look green?
Hair
What helps algae grow in the fur?
Moths
Which insects live in sloth fur?
Ground
About how often do three-toed sloths climb down to defecate?
Eggs
Where do sloth moths lay their eggs?
Help
How might the moths help the algae?
Snack
What might sloths gain from the algae?
Rain
Why does sloth fur part on the belly?
Types
Which two kinds of sloths exist?

Explanations: answer key for all 10 questions

Q1: Where do sloths live?
Answer: Central and South America
They live in rainforest trees.
Q2: What can make sloth fur look green?
Answer: Algae growing in it
It helps camouflage.
Q3: What helps algae grow in the fur?
Answer: Grooves or cracks in the hairs
Water collects there.
Q4: Which insects live in sloth fur?
Answer: Moths
They are called sloth moths.
Q5: About how often do three-toed sloths climb down to defecate?
Answer: About once a week
It is a risky trip.
Q6: Where do sloth moths lay their eggs?
Answer: In sloth dung
Adults fly back to the fur.
Q7: How might the moths help the algae?
Answer: By adding nutrients to the fur
It is a proposed cycle.
Q8: What might sloths gain from the algae?
Answer: Extra nutrients if they eat it
Scientists are still studying this.
Q9: Why does sloth fur part on the belly?
Answer: So rain runs off while hanging upside down
It grows the opposite way.
Q10: Which two kinds of sloths exist?
Answer: Two-toed and three-toed
The count refers to front limbs.

A Tiny World in a Shaggy Coat

Sloths live in the rainforests of Central and South America and spend most of their lives hanging in trees. Their fur hairs have grooves or cracks that hold water, letting green algae grow, which gives the fur a green tint and camouflage in the canopy.

Moths live in sloth fur too. Three-toed sloths climb down about once a week to defecate, and sloth moths lay eggs in the dung. Adult moths fly back to the fur, and scientists suggest they add nutrients that help the algae grow, which sloths may eat for extra nutrition.

Because sloths hang upside down, their fur grows from the belly toward the back, so rain runs off. There are two-toed and three-toed sloths, both with very slow metabolisms that save energy on a leafy diet.

What This Quiz Teaches

Animal fans will enjoy these questions.

Why sloth fur is green
Which insects live there
Why sloths climb down
How fur sheds rain
Which types exist

Did You Know?

Sloths can swim surprisingly well.
They can turn their heads far.
Their digestion takes many days.
Harpy eagles hunt sloths.
Beetles also live in the fur.