What are hedgehog's spines made of?

bones
keratin
chitin
cartilage
Keratin is a fibrous protein, a key struc­tural com­po­nent of the hair, nails, horns, claws and hooves of mammals. Hedgehog spines are hollow hairs made stiff with keratin.

Answers distribution

bones
keratin
chitin
cartilage
answers
flagthe United Arab Emirates
5%
84%
5%
5%
19
flagSpain
0%
78%
21%
0%
14
flagSingapore
7%
76%
7%
7%
13
flagMalaysia
13%
73%
6%
6%
15
flagIndia
3%
65%
20%
11%
204
flagGermany
2%
65%
13%
18%
155
flagAustralia
10%
65%
20%
0%
20
flagthe United Kingdom
3%
63%
17%
14%
294
flagCanada
9%
62%
9%
18%
32
flagItaly
0%
62%
25%
12%
16
flagFrance
7%
61%
19%
11%
26
flagUkraine
6%
60%
20%
13%
30
flagPoland
4%
59%
20%
14%
11138
flagPakistan
2%
58%
23%
14%
34
flagthe United States
4%
56%
19%
18%
459
flagRepublic of Ireland
2%
55%
26%
15%
45
flagthe Netherlands
3%
55%
33%
7%
27
flagUnknown
5%
51%
28%
14%
94
flagthe Philippines
6%
50%
28%
15%
32
flagNorway
13%
40%
33%
13%
15

Gender

men55%
women55%
bones
4%
3%
keratin
55%
55%
chitin
23%
25%
cartilage
16%
15%

Language versions

Details

Author: globalquiz.org
Illustration: Daniel Wehner
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