Question

duck billed platypus is termed as connecting link between bird mammals​

Answer 1

The platypus which is present only in Australian countries and which is "one of the five mammal" species of which "lay eggs" instead of giving birth to a young one.

Explanation:

• Platypus are link between "Mammals and Reptiles" since they holds resembling features to both the groups.
• Platypus separated from Mammals about '165 - 166 million years' ago and kept some reptilian features such as laying eggs.
• It took up some mammalian features like possessing mammary glands and diaphragm.

• So, the correct answer is 'Reptiles and Mammals'.  

To know more:

Rats are most evolved than platypus.why

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