The blue poison dart frog (Dentrobates tinctorius "azureus"). / The Australian green tree frog (Litoria caerulea).

plural of blue frog

Grus paradisea, a bird of the crane (Gruidae) family

plural of blue crane

plural of blue dasher

A blue-coloured species of libellulid dragonfly, Brachydiplax chalybea, of eastern Asia.

Pteroceltis tatarinowii, a species of tree endemic to China.

A crab of species Callinectes sapidus / Ellipsis of blue king crab. (Paralithodes platypus)

A species of coenagrionid damselfly, Pseudagrion microcephalum, of Asia and Australasia.

plural of blue riverdamsel