okazy 用英语:

They collect 20-30 specimens a day.

A black panther can be a jaguar or leopard, but in either case it has a gene that causes it to produce more melanin than other specimens.

Because of his passion for indigenous Mexican art, he spends his weekends in Tlaxcala or Teotihuacan looking for good specimens of small statues.

How many specimens can the public see at the Smithsonian Institution?