What are egg laying animals known as?

From which animal is the valuable Pashmina wool obtained?

Which is the most important part of an egg? 

What is the process of the periodical replacement of feathers by birds called?

Which is the most venomous fish?

Feathers are made up of an insoluble protein. What is the protein called?

Name the fish that travels to the Pacific Ocean to lay its eggs.

What is called a German Shepherd dog?

How many muscles are there in a human body?

Which is the other name of viper?