orangutan, dark red
猩 centers on the orangutan, a large reddish ape. The color sense 'dark red' is a direct extension of the orangutan's distinctive fur color.
猩 combines the animal radical 犭 with 星, which likely provides the sound. The character was created to name the orangutan, with the color meaning derived from the animal's reddish hair.
An animal 犭 with a star 星 on its chest: picture a reddish orangutan proudly showing a star-shaped patch of dark red fur.
For ショウ, imagine a show starring an orangutan: show -> ショウ, and the star orangutan shows off its dark red fur.
orangutan
fruit fly (any insect of family Drosophilidae); vinegar fly; pomace fly; banana fly
gorilla
northern cardinal (Cardinalis cardinalis); common cardinal
scarlet
Oriental swamp pink (Heloniopsis orientalis)
scarlet ibis (Eudocimus ruber)
Mexican fireplant (species of poinsettia, Euphorbia heterophylla)
kangaroo shrimp (Glyphus marsupialis)
scarlet fever
chimpanzee