Hunting for creepy crawlies in 'BioBlitz'

A group of schoolchildren in Bristol have swapped their classroom for the great outdoors to take part in what is being called a "BioBlitz".

The "BioBlitz" is designed to help establish what animals exist in the local environment, and children in Bristol hope to find many different species of wildlife.

The BBC's Alex Bushill has spoken to entomologist Ray Barnett about why the project is so important.

It is all part of the UN's international year of biodiversity, which aims to raise awareness of the importance of the natural world for the survival of humanity.