Underlying many of our mistaken beliefs about animal intelligence is the problem of negative evidence.

WSJ: The Brains of the Animal Kingdom

So far, says Chief Scientific Officer David Stirling , Revimid does not cause such birth defects in New Zealand rabbits--the only animal model in which the Thalomid problem shows up.

FORBES: Magazine Article

The British Government was sufficiently concerned about the problem to ban the use of human antibiotics as animal growth promoters.

BBC: Animals and antibiotics: the risks

Some defense lawyers say the animal court is a symptom of a larger problem.

WSJ: Special Court Puts Pet Owners on a Leash

So bad has been the problem of late here in California that the Los Angeles Animal Regulation Commission has just approved a new set of guidelines for pet stores.

BBC: News | Americas | LA's lizard crisis

The problem will be worsened by global warming affecting the population balance of animal predators such as owls, snakes, birds and bats, animals that keep insects and rodents in check.

CNN: Global warming may harm human health

Having resolved the problem, the farm now boasts an environment and heritage centre which teaches children about animal welfare and horticulture.

BBC: Prince Charles at Ouseburn Farm in Newcastle

The problem is that it is difficult to conduct studies of RF in the laboratory using cells and animal models.

FORBES: Should The FCC Re-Examine Cell Phone Radiation?

Animal psychologist Roger Mugford, who founded the UK-based Training and Behaviour Centre, which works with problem dogs, echoes that view.

CNN: Police investigate UK girl's fatal mauling by dogs