Amphibians also have special skin glands that produce useful proteins. Some transport water, oxygen, and carbon dioxide either into or out of the animal. Others fight bacteria or fungal infections.

Animals can be divided into groups ... Fish can be found in all kinds of water, like oceans, rivers and lakes. In Northern Ireland, some common fish types found in rivers include salmon and ...

How much do you know about different animal types and species such as mammals, vertebrates, invertebrates and insects? Do you know the difference between amphibians and reptiles? What about ...