Usually a course of medications is tried in any event, to assess how the animal responds to them.

Why does the animal respond that way instead of some other way?

The animals did, however, respond to the alert signal - but in precisely the wrong way.

It lets people and animals respond to what is around them.

'I usually find animals respond to people who like them,' Robbie said.

Grant felt sure it must have seen him, but the big animal did not respond.

It was a painful process, waiting until the animals responded.

For one thing, animals respond to the drugs within half an hour, while depressed patients need weeks before feeling their effects.

Sometimes an animal will respond, but then months later it won't.

Research is showing that many animals respond to other weather cues.