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
16
Greece
15
Unknown
29
Egypt
10
Italy
10
the United Kingdom
129
Poland
13488
Germany
194
India
243
Switzerland
12
the United States
456
Austria
30
Australia
50
Canada
28
the Netherlands
15
Malaysia
14
Nigeria
11
Pakistan
32
the Philippines
21
France
10