Interesting Facts about Mammals
It is important to know some facts about mammals because they are one of the six classes of animals found on earth. ‘Mammals’ refers to a large group of animals, mostly land-based, which are warm-blooded and covered with hair or fur and capable of producing milk. There are two aquatic mammals which are the dolphins and whales and the bat is said to be the only known mammal that is capable of flight. These creatures are able to keep their body temperature warm and it has enabled them to adapt to different climatic conditions. The other defining feature of mammals is that all the children get mother’s milk to grow up. This keeps the bonds between mother and children going longer than many other creatures and makes for a stronger family unit than is the case with reptiles. Another interesting fact about mammals is that all mammals have inner ear bones. It is said that these bones which were once used for eating have evolved into important parts of our hearing mechanism.
Classification
Like most creatures with a varied number of sub-species there are a couple of different ways in which mammals can be further classified.
There are said to be anywhere from 4200 to 5400 kinds of mammals in this world and they are further sub-categorized based on their methods of reproduction. The egg-laying mammals such as the duck-billed platypus are classified as Monotremes and the animals with pouches such as Kangaroos and koalas are marsupials. Most mammals such as human beings are placental mammals that give birth to their young ones.
Mammals can also be distinguished by their diet as herbivores such as elephants and giraffes, carnivores such as lions and tigers, omnivores such as bears and human beings and insectivores such as pangolins and anteaters.
All mammals have a spine and that is the reason they are referred to as vertebrates.
For its seemingly large number, mammals make up a small group in the animal kingdom.
Fun facts about mammals
This group which includes everything from the smallest to the largest of creatures has a treasure trove of fun facts to offer the curious zoologist amongst us.
The polar bear which is a mammal looks like it has white fur but it has black skin covered by colorless, hollow hair.
The shortest childhood among mammals is said to be that of the Hooded Seals which move from infancy to adulthood in four days.
A grey whale baby can be as much as 2000 pounds at birth.
The reason bats stand upside down is that their legs are too weak to bear their weight.
Elephants which are one of the largest and heaviest mammals at nearly 5 tonnes tend to leave no foot prints because of the spongy underside of their feet which helps them distribute their weight.
The Bumblebee Bat is the smallest mammal and the Blue Whale is the largest mammal.
Mammals are intelligent creatures where the young ones learn from their parents and this has helped evolutionary progress.
Mammals have and will continue to fascinate scientists not in small part because we human beings belong to this class of animals. It is fascinating to understand the ways in which we are different from other mammals and to see the similarities. It is a great way to understand the trajectory and progress of the animal kingdom and it can be a good foundation to assess the future course of our civilization.
There is something unique and interesting about every mammal and while it is hard to list all the fun facts, those listed above give an idea of the infinite variety of mammals and the incredible level of adaptation that every creature has achieved.