First of all, two essential similarities and several differences in physical characteristic between the platypus and the crocodile can be found. The first similarity is the colour. The platypus and the crocodile are both brown. Besides, the platypus, which has four short limbs, is similar to the crocodile, which has them too. However, there are also some differences between the platypus and the crocodile in what they look like. Firstly, the platypus, whose skin is covered by fur, differs from the crocodile, which is protected by leathery skin with black spots (African slender-snouted crocodile, n.d.). In addition, the platypus does not have any teeth (Platypus, n.d.a), whereas the crocodile has a lot of sharp teeth, which can bite its preys. Lastly, the platypus, whose length is 40 to 60 centimetres and weight is 0.8 to 2.5 kilograms (Duck-Billed Platypus, n.d.), is smaller and lighter than the crocodile, which is approximately 400 centimetres long and weighs about 125 to 325 kilograms (African Slender-Snouted Crocodile, n.d.).
Secondly, there are three primary similarities in how they behave even though the behaviour of the platypus is different from that of the crocodile. First, both the platypus (Platypus, n.d.b) and the crocodile (Slender-snouted crocodile, n.d.) are solitary animals, which means that they are antisocial animals. Moreover, the platypus is an agile swimmer. Similarly, the crocodile is too. Last but not