Which animals live on ground?

Lots of animals do. Mammals, mainly (except dolphins, whales, and orcas) and arachnids (Spiders, 8-legged creatures). If you're looking for types of animals:

Dog

cat

pig

platypus

hamsters

rats

mice

cougars

lions

tigers

bears

spiders

scorpions

ticks

fleas

There's lots more, but this is a VERY obvious question.