The internet is concerned for an animal expert after he shared a clip of swimming with a pink river dolphin in the Amazon rainforest, the land of anaconda, giant centipedes, and piranhas. Humans might be the most dangerous animal on the planet, but Mother Nature gives us a run for our money. Not only do some animals have iron-tipped teeth for tearing at prey, but shark attacks are on the rise and even the mushrooms are out for blood. There are dolphins in the Amazon Rainforest, and they’re pink!By now, you should understand that dolphins have quite the reputation despite their cheery dispositi…