Misc: He said, 'i have nothing to offer but blood, tears, toil & sweat'?

Questions

What animal was named for what was wrongly thought to be its country of origin?

What animal, when born, falls from a average height of six feet, normally without being hurt?

What animals give birth to fawns?

What animal's hair is used in violin bows?

What animals reached plague proprotions in the town of Hamelin?