Understanding Platypuses and Mammalian Evolution

What makes platypuses stand out among mammals?

• They are the largest mammals.

• They have feathers.

• They lay eggs and have venomous spurs.

• They can fly.

Which group did the early synapsids belong to?

• Amphibians

• Fish

• Birds

• Reptiles

What is a defining feature of monotremes?

• They have feathers.

• They lay eggs.

• They have live births.

• They are cold-blooded.

How do platypuses feed their young?

• Through nipples.

• By regurgitating food.

• By sweating out milk.

• By hunting for them.

What is unique about the venomous spurs of platypuses?

• They are used for hunting.

• They are located on their ankles.

• They are found on their tails.

• They are used for flying.

What is the primary use of the venomous spurs in platypuses?

• To settle mating disputes.

• To catch prey.

• To dig burrows.

• To defend against predators.

How do platypuses locate their prey?

• With their electro-sensitive bills.

• Using their sense of smell.

• By sight.

• By sound.

What is a notable feature of the platypus's bill?

• It is used for flying.

• It is used for digging.

• It is covered in feathers.

• It is electro-sensitive.

What evolutionary trait is less developed in modern platypuses compared to their ancestors?

• Teeth

• Feathers

• Scales

• Wings

What is the significance of the platypus's electro-sensing ability?

• It helps them fly.

• It aids in navigation.

• It allows them to detect prey.

• It helps them communicate.