Insects, worms and other small animals that carry out vital functions for life on earth have declined by 45 per cent on average over 35 years, threatening human health, water quality and food ...

Save guides, add subjects and pick up where you left off with your BBC account. …or spinal column. Blob is a very simple invertebrate, just like worms or jellyfish. Over 96% of all the animal ...

There are good reasons why invertebrates are as small as they are – ecology and environment keep them in check. But there was a time when insects were as big as crows. What happened?

Broadening the scope of animal advocacy to include wild and intelligent animals, as well as invertebrates, is more than an ethical imperative, it is a practical necessity.

The Lord Howe Island stick insect vanished from its home, but an effort at zoos in San Diego and Melbourne highlights the possibilities and challenges of conserving invertebrate animals.