IF you thought a monstrous 22-inch rat was shocking, check out some of these oversized animals.

Over the years people have been stunned by the likes of giant dogs, massive pigs - and even a tuna fish bigger than a fully-grown man.

Supersize animals can come about for a number of reasons, such as genetics, evolution as they adapt to changes in the world and ease of access to more high calorie foods.

Last week, a huge rat was found in a home in Redcar and Cleveland and left hundreds repulsed by a picture of it shared on social media by local politicians.

Here are some other big beasts that have stunned the world.

#1 Giant Great Dane s

Great Dane dogs are already known for their large size, usually coming in between 2ft 5in and 2ft 9in.

But there have been numer

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