Dogs have about 100 different facial expressions, most of them made with the ears and only about 10 different vocal sounds. They are fast, too! How fast? Most dogs are capable of reaching speeds up to about nineteen miles per hour when running at full speed.
Dogs’ nose prints are as unique as human fingerprints and can be used to identify them. Their nose isn't just unique it's amazing! Dogs have a remarkable sense of smell, they are capable of differentiating odors in concentrations nearly 100 million times lower than humans can.
A group of cats is called a clowder, a male cat is called a tom, a female cat is called a molly or queen while young cats are called kittens. They may seem lazy, but cats conserve energy by sleeping for an average of 13 to14 hours a day. It's hard for us to see at night, but cats have powerful night vision, allowing them to see at light levels six times lower than what a human needs in order to see.
Fish have gills that extract oxygen from the water around them. They are covered in scales which are often covered in a layer of slime to help their movement through water. Can you believe there are over 30000 known species of fish swimming out there?!