Box jellyfish have sophisticated eyes with a lens and a retina. How big is its brain?

about the size of a peanut
about the size of a wallnut
about the size of a coconut
jellyfish have no brain
Their speed and vision leads some re­searchers to believe that box jel­ly­fish actively hunt their prey. Since they have no brain, the mech­a­nisms that could make it happen remain unknown.

Answers distribution

about the size of a peanut
about the size of a wallnut
about the size of a coconut
jellyfish have no brain
answers
flagSweden
0%
0%
0%
100%
11
flagUkraine
5%
0%
0%
94%
19
flagthe Netherlands
2%
0%
5%
91%
36
flagDenmark
13%
0%
0%
86%
15
flagNorway
8%
2%
0%
85%
34
flagFrance
10%
5%
0%
85%
20
flagthe Philippines
5%
0%
5%
84%
19
flagGermany
8%
4%
2%
82%
102
flagCanada
8%
0%
8%
82%
23
flagthe United Arab Emirates
0%
9%
9%
81%
11
flagthe United Kingdom
9%
5%
2%
80%
208
flagPoland
9%
6%
3%
77%
9649
flagSpain
8%
8%
0%
75%
12
flagthe United States
12%
5%
4%
74%
385
flagUnknown
20%
0%
6%
73%
45
flagPakistan
10%
10%
0%
70%
10
flagRepublic of Ireland
18%
9%
4%
68%
22
flagItaly
7%
7%
15%
69%
13
flagIndia
20%
8%
4%
59%
104

Gender

men85%
women81%
about the size of a peanut
6%
9%
about the size of a wallnut
4%
5%
about the size of a coconut
2%
3%
jellyfish have no brain
85%
81%

Details

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