Rat

Rat refers to many rodents of the family Muridae, resident to planet Earth.

Brown rats(Rattus norvegicus) originated in Central Asia and arrived in Great Britain in 1730, reaching the United States of America in 1775.

These animals were considered extinct - through uncertain means - by 2267, although this was rectified when some infiltrated USS Enterprise NCC-1701 in December of that year(TOS novel Mission to Horatius).