The animal protection group Humane Society International said the new directive would still not prevent "severe suffering" in certain types of animal testing.

BBC: EU tightens rules on welfare of lab animals

He has pioneered the use of technology to study cancer-associated genes and to construct animal models of many human cancer types, including cancers of the lung, pancreas, brain, and ovaries.

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The researchers found two different types of acid-secreting enzymes in the animal, Katz told OurAmazingPlanet.

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These are recognisable types of footprint that cannot be matched precisely with the species of animal that left them.

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In his lab at the University of California, Berkeley, Full studies the biomechanics behind animal movement, trying to identify which species are the best at executing specific types of motion, such as running, climbing or crawling and then attempting to pinpoint exactly what biological features makes these creatures so skilled at what they do.

CNN: Snails inspire design for state-of-the-art robots

In a series of animal experiments published over the past year, university-based neuroscientists genetically engineered mice and monkeys with different types of neurons primed to be uniquely responsive to shades of laser light, so that a single type of activity or behavior could be altered instantly without affecting anything else.

WSJ: Scientists Cast Light Onto Roots of Illness Deep in the Brain