Biology

Crocodilian
Everything you need to know about crocodiles, from the different species, their biology and conservation, how they talk, and even their captive care.

Tales from the Hive
Each bee and each cell possesses a rigidly specific function. Have a look at the physical, behavioural, and social infrastructure inside a bees' nest.

Biodiversity - What on Earth is it?
A colourful resource from the National Environment Research Council on the importance of biodiversity.

The Heart and Circulation
Each cell needs its own supply of nutrients and oxygen and to have its waste products removed. Using diagrams and quizzes, discover how your heart and blood circulation achieves this incredible feat.

Online Digital Microscope
The Open University's online digital microscope allows you to interactively examine plant, animal and microbe slides and includes notes to describe exactly what you are seeing.

Cow's Eye Dissection
Watch the dissection online or you can download instructions on how to carry out your very own. For the more squeamish there's a section where you can learn more about eyes and how they work.

Cool Science
Sharing the facts and fun about science with all ages.

GCSE Bitesize - Biology
Revision exercises from the BBC.

The Human Body and Mind
Comprehensive site from the BBC covering all aspects of the human body including an interactive drag and drop activity to place the body's organs in the correct position.

about.com: Biology
The best new content, relevant links, how-to's and answers to just about any question by experts in their field.

Red Gold: The Epic Story of Blood
Delves into the facts and myths about human blood and its impact on everything from religion to medicine to popular culture throughout history.

Bloodlines: Technology Hits Home
Are we creating a world that we don't want to inhabit? Explore this and many other questions, where you make the decisions - and face the ethical dilemmas.

Becoming Human
An interactive documentary experience that tells the story of four million years of human evolution.

Cells Alive
Film and computer-enhanced images of living cells and organisms for education and medical research.