They don’t have true sweat glands; instead, hippos secrete a thick, red substance from their pores known as “blood sweat,” as it looks like the animal is sweating blood.
But not to worry!
The blood sweat creates a layer of mucous that protects hippo skin from sunburn and keeps it moist.
What color is the sweat of a hippo?
The Hippo’s skin secretes a natural sunscreen substance which is red-colored. The secretion is sometimes referred to as “blood sweat”, but is neither blood nor sweat. This secretion is initially colorless and turns red-orange within minutes, eventually becoming brown.
Does a Rhino sweat blood?
In fact, they don’t have sweat glands underneath their skin to release excess heat, unlike other mammals. This is why you will often find them spending their days in the water, especially when it is hot, in order to keep their bodies cool and hydrated.
What is hippo sweat made of?
The really clever thing about hippos is that they produce their own sunscreen, in the form of a sticky reddish sweat. It has told Nature magazine the oily secretion is made up of two unstable pigments – one red, the other orange.
Does a hippos sweat turn red when upset?
It seems that hippos secrete a natural sunscreen, often called ‘blood sweat’ for its reddish-brown color. The hippo version of sweat, which is red-orange, contains pigments that can block microbial growth and some ultraviolet light. On its skin are pores, which exude droplets of moisture containing red pigment.