Centuries ago, Earth was once inhabited by giant creatures, including the Demon Ducks of Doom. They are classified as flightless birds, 2 meters tall and 200 kg in weight.
This creature has a very long body and swims close to the surface of the water, then even sticks its tentacles onto the boat.
New US scientists have recently made new assumptions
The legendary Bigfoot monster, also known as Sasquatch, is a giant creature half a half-ape, living mainly in the Pacific Northwest region.
A wrinkled hand about the size of an adult's hand with long, fat fingers has been displayed at Pangboche Monastery (Nepal) for many years.
A retired British detective said he had seen the Loch Ness monster twice before.
Giant creatures discovered by local fishermen and they believe it is a giant squid.
The Scottish scientist's study showed that giant squid hidden in deep sea could be bigger and longer than a school bus.
According to a study published in the journal PLOS One, the least sleeping animal on Earth is an elephant.
It is known that this python weighs about half a ton and is 9.7 meters long.