Page 5 - PPT3

Dispersal by animals:

• Seeds can be dispersed by animals as well.

• Some seeds have hooks or spines, by which they stick to the

body of animals and thus carried away.

• The seeds of cocklebur have spines, which help them to stick

to the body of animals.
Cocklebur seeds

• Many birds and animals swallow the seeds while eating the

fruit. However, these seeds are not digested and come out

unchanged in the animals’ thus germinating in different

places. droppings,

• Humans also help in dispersing seeds. We eat fruit and

throw away their seeds. When some seeds fall on the ground
Dispersal by
and receive proper condition, they germinate. Dispersal by
animals
birds