They range in size from the tiny Madame Berthe's mouse lemur, weighing little more than an ounce, to the 440lb mountain gorilla.

What to see and where to be seen

The Smithsonian's database of thousands of 'candid camera' shots gives a fascinating insight into wild behaviour

Neuroscience is a frustrating business. Modern research has done a wonderful job of mapping out the overall organisation of the human brain, yet the details of the machinery remain mysterious. We know which brain region is responsible for face recognition, and which understands word meanings, and which takes care of decisions, and so on. But nobody has any idea how these clever tricks are done. Much of our knowledge comes from brain injuries. Localised damage to the brain can cause very specific disabilities. There are people who have lost the ability to see motion, even though their vision is otherwise normal, and people who can no longer speak grammatically, even though they can comprehend others perfectly well.

If you ask me...

Stories of survival, rebellion, greed and love come to life in a remarkable marriage of music and film

An abandoned baby orang-utan had a luxury journey to its new adoptive home - as a first-class passenger on a cruise ferry.

Rain or shine, this tiny fragment of the Caribbean is the perfect place for a relaxing family holiday

Take one boffin. Mix with comedy writers, and hear them gently fizz

Marek Kohn takes a cool look at new books that tackle the hottest issues in research

Snakes, stray dogs and monkeys are the latest problem for officials rushing to complete work at the athletes' village in Delhi.

That's F as in "Fail", which describes what troubled teacher Mr Anderson (David Schofield) is doing after a traumatic attack on him by a pupil.

World-changing theories and big breakthroughs are what every scientist yearns for. But the pressure to get results – and glory – means that feuds come thick and fast, says Holly Williams

A previously unknown monkey species has been discovered in the Colombian jungle.