What is narwhal 'horn' really made of?

it is a horn grown on its forehead
it is an adapted scale
it is a canine tooth
it is an adapted nose bone
Usually, males have a single long tusk, the canine on the left side of the upper jaw that projects through the lip and forms a left­-hand­ed helix. The tusk grows through­out life reaching length of 3 m (10 ft). In some rare cases, both canines grow equally long, forming two tusks. In the Middle Ages, narwhal tusks were sold as unicorn horns.

Answers distribution

it is a horn grown on its forehead
it is an adapted scale
it is a canine tooth
it is an adapted nose bone
answers
flagAustralia
5%
5%
66%
16%
18
flagIsrael
6%
0%
66%
20%
15
flagthe Netherlands
8%
0%
65%
25%
35
flagSweden
7%
0%
64%
28%
14
flagRussia
10%
10%
63%
15%
19
flagthe United States
8%
7%
60%
22%
435
flagNorway
3%
7%
57%
28%
28
flagItaly
15%
0%
57%
26%
19
flagPoland
9%
5%
56%
27%
11910
flagSpain
0%
12%
56%
31%
16
flagthe United Kingdom
10%
4%
55%
28%
245
flagUkraine
5%
0%
55%
35%
20
flagFrance
9%
4%
54%
31%
22
flagCanada
3%
6%
53%
36%
30
flagUnknown
11%
2%
50%
34%
261
flagGermany
10%
2%
50%
36%
124
flagIndia
11%
15%
50%
22%
108
flagSwitzerland
0%
21%
50%
28%
14
flagRepublic of Ireland
11%
8%
45%
31%
35
flagthe Philippines
26%
13%
40%
13%
15

Gender

men54%
women52%
it is a horn grown on its forehead
9%
8%
it is an adapted scale
5%
6%
it is a canine tooth
54%
52%
it is an adapted nose bone
31%
33%

Details

Author: Betty
tools
Should this question be improved? Improve it.
Globalquiz questions are translated by users for other users. Translate this question.