360-Degree Vision: Horses have almost 360-degree vision due to the placement of their eyes on the sides of their heads. However, they have blind spots directly in front of and behind them.
Horses Can Sleep Standing Up: Horses have a unique locking mechanism in their legs that allows them to sleep standing up. They do lie down for deep sleep, but they can rest while standing to be ready to flee from predators quickly.
Fast Learners: Horses are intelligent animals capable of learning a variety of tasks and tricks. They can remember people, places, and things for many years.
Communication Through Ears and Tail: Horses use their ears, eyes, and nostrils to communicate with one another. Their ears are particularly expressive, often indicating their mood and attention.
A Large Heart: A horse’s heart weighs between 8.5 and 9 pounds (3.8 to 4 kg). The famous racehorse Secretariat had a heart that was estimated to weigh about 22 pounds (10 kg).
Digestive Efficiency: Horses have a unique digestive system with a small stomach but an extensive large intestine.
Horses Can't Vomit: Due to their strong esophageal sphincter and long digestive tract, horses cannot vomit. This makes colic, a digestive upset, particularly dangerous for them.