Which Animal excretes red sweat in anger?

The animal that excretes red sweat when angry is the hippopotamus. This phenomenon occurs due to a unique oily secretion that acts as a natural sunscreen and also has antibacterial properties. When the hippo's skin is irritated or when it is in distress, this red-colored secretion, often referred to as "blood sweat," is produced and can make it appear as though the hippo is sweating blood.