The kra dahn, also called the bekk bokk is an enormous monkey inhabiting the tropical montane forests in Langtang national park in the Central Development Region of Nepal. The kra dahn are four to six feet tall, with muscular bodies, long, thick arms, very strong legs, and a thick tail. Their faces are described as resembling a man’s, but with a very large mouth, lower on the face.
One of the strangest details kra dahn's anatomy is that they allegedly have three toes on their feet, which no known primate has. The kra dahn is aggressive and moves by a strange, inhuman leaping motion. They are usually quadrupedal but are capable of walking on two legs.
The most famous sighting of a kra dahn was in June of 1953 by two physicians, George Moore, along with an unnamed Nepalese health adviser, and entomologist George Brooks. They were trekking back to Kathmandu through the misty rainforests of Gosainkund Pass at about 17,000 ft. They then heard an unearthly scream and the sound of thrashing leaves, but due to the mist, they couldn’t see within 20 feet of themselves. They then noticed a kra dahn’s face peering at them through the bushes. It had grey skin, beady yellow eyes, sharp yellow teeth, a large mouth and black eyebrows. Brooks later described its facial expression as “demoniacal cunning and anger.” The creature then emerged from the leaves, half crouching and covered in hair. Its tail was moving in a strange flicking movement. Before they could react, six or seven more kra dahn became visible and started snarling and slowly moving closer to them. The men then fired their guns in the air to scare the kra dahns away and, indeed, the creatures retreated.