Hippos can open their mouths 150 degrees. They actually yawn as a warning. Hippos fight with their mouths open to intimidate rivals, display dominance, and unleash their devastating bite using massive tusks, a threat behavior called "gaping," often signaling territory disputes or mating rights between males, showcasing fearsome teeth that can reach over a foot long to inflict severe, sometimes fatal, wounds. | Roar Wildlife News

535K views · 1.9K reactions | Watch two hippos mate underwater in Kenya's Maasai Mara National Reserve. #DigitalSafari #CGTNWild | CGTN | Facebook

17K views · 256 reactions | These hippos are breeding like rabbits. #TheDailyShow | Paramount Network Asia | Facebook

77K views · 3K reactions | Our pygmy hippos, Posie & Pluto, are proud to announce the birth of their first baby! This the first baby pygmy hippo born at Tanganyika and our 40th successful breeding program! | Tanganyika Wildlife Park | Facebook

Say hello to Matylda and Manon 🦛🦛 These sisters are the first hippos to arrive at Longleat in more than 40 years. Four-year-old Matylda and three-year-old Manon will be joined by mother and son Lola and Hodor from Whipsnade Zoo in Bedfordshire in the next couple of weeks. It's hope they can be part of a breeding programme in the future. | BBC Wiltshire