In the past , man showed little care for the survival of living things.He (25) animals for food, skins,sport or for making preserved collections (26) living things-such as plants, butterflies and birds'eggs and preserving them was once a (27) hobby. As a result,some species have (28) today in many countries,people are not (29) to collect certain species of plants and all birds-eggs. Photographing plants and animals and animals and (30) animal sounds are two hobbies which have replaced collecting.