Mammals can maintain a constant body temperature.

A bat is a small mammal that is active at night.

She had a small flower in her hand.

He always works at nighttime.

We participated in the local cleaning activity over the weekend.

The mother kangaroo is suckling her child.

Lactation deepens the bond between a baby and its mother.

We are actively participating in local activities.

The bird is flying in the sky.

It's difficult to master the use of the 'Hisha' in shogi.