'Even-Toed' Ungulates Are a Diverse Group, Including Camels and Deer.
These mammals, belonging to the order Artiodactyla, bear weight equally on two (or four) toes, unlike odd-toed ungulates (Perissodactyla) which bear weight on one or three toes.
2 facts
These mammals, belonging to the order Artiodactyla, bear weight equally on two (or four) toes, unlike odd-toed ungulates (Perissodactyla) which bear weight on one or three toes.
Two hearts pump blood through the gills, while the third circulates it to the rest of the body. This unique circulatory system helps them thrive in low-oxygen deep-sea environments and efficiently deliver oxygen to their muscles.