Sea slugs: Discovering other inhabitants in the Barcelona coasts

A study on marine biodiversity has identified seventy-three species of sea slugs in the coasts of Barcelona, an anthropized environment due to the urban metropolis. In this group of gastropod molluscs, the most abundant in ...

Researchers discover 18 new species of molluscs

Molluscs are invertebrates that make up one of the most numerous groups in the animal kingdom. They are everywhere, from great heights of over 3,000m above sea level to ocean profundities of over 5,000m deep, in polar and ...

When is an animal not an 'animal'? Research ethics draws the line

Many people are surprised to find that insects, jellyfish and sea urchins are animals. Animals are generally thought of as medium-sized four-legged creatures with two sets of eyes and ears—those with features similar to ...

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