Can you dive deep into the blue for these trivia answers? Test your animal knowledge here!

The blue whale is a large marine mammal and a baleen whale. Reaching a maximum confirmed length of 98 ft and weighing up to 199 metric tons, it is the largest animal known to have ever existed.

Panting is a normal behavior for happy and active dogs. It helps dogs cool themselves down because they can’t sweat like humans do. Panting allows a dog to rapidly inhale, humidify, then exhale the air, which increases the evaporation of water from your dog’s nose and lungs. The evaporation of water cools the body from the inside out.

The Greenland Shark has the longest lifespan of all known vertebrates, with some living to be around 500 years old! That means there are some Greenland sharks alive today that may have been born in the 1520s!

A farmer named Lloyd Olsen, chopped the head off his chicken in 1945, but the chicken just didn't die. So, they kept him around and dropped food and water directly into his esophagus. It finally gave out after 18 months and a considerable amount media attention.

A typical fully-grown Holstein cow weighs nearly 1,400 pounds and can produce about 60 pounds of milk in a single day. 60 lbs. of milk are equal to about 7.19 gallons per day.