Lecture 2 - The animals strike back

In this lecture, Sue Hartley explores the different ways plant-eating animals have evolved to adequately sustain themselves, and tackle plants' weapons of self-defence. 

Whilst vegetation might help fill an empty stomach, it doesn't provide animals with all the nutrients they need to live and grow. Plant material is mostly cellulose, water and carbohydrate, and has very little fat or protein which are both vital to an animal’s diet. To add to the dilemma, plants have developed all sorts of self-protection mechanisms, which make it hard for animals to feast on them at the best of times.

Supported by

Copyright

© Channel 4

License

Courtesy of Channel 4

Year

2009

Lecturer

Sue Hartley

Duration

48:38

All lectures in the series