Which animal class has the most species?
crustaceans
arachnids
insects
birds
About 60% of all known species are insects.
reach: rather globalanimalsnaturezoology
Answers by country
crustaceans
arachnids
insects
birds
answers
Republic of Ireland
17
Greece
16
Unknown
29
the United Kingdom
130
Egypt
10
Italy
10
Germany
207
Poland
13528
India
244
Switzerland
13
the United States
462
Austria
30
Australia
50
Canada
28
the Netherlands
15
Malaysia
14
Pakistan
32
the Philippines
21
France
10
Nigeria
12