Question

common prawn
emperor scorpion
aeger\tcommon prawn\temperor scorpion
large, wide claws\t\t
long, thin antennae\t✓\t\t
a mostly black body\t\t
thin legs\t✓\t\t
a tail that curves upward\t\t

Explanation:

Answer:

large, wide claws: emperor scorpion
long, thin antennae: common prawn
a mostly black body: emperor scorpion
thin legs: common prawn
a tail that curves upward: emperor scorpion