The kangaroo is a marsupial.
A marsupial is a mammal that carries its young in a pouch. The koala bear, kangaroo, and wallaby are all marsupials. Marsupials are mainly found in Australia and Papua New Guinea.
They have a screechy voice.
A screech is a high-pitched sound that is usually not pleasant to hear. A screech often happens when there is a lot of pressure between two surfaces. A screech is also a loud, high-pitched cry or scream. Notice the following:
- The whiteboard marker made a screech on the board because it was out of ink.
- The child make a loud screech when it could not find her mother.
There numbers have greatly diminished.
When something diminishes, it decreases in size or quantity. For example, you can say the forest has diminished due to logging. Notice the following.
- Due to global warming, the polar ice caps are diminishing.
- Our profits have diminished due to the bad economy.
Baby kangaroos like to sit in their mother's pouch.
A pouch is a bag or pocket to carry something in. For example, some jackets have extra pouches to carry things in. Some animals, such as marsupials, have a pouch on their body to carry their young. Notice the following:
- Let me check my pouch in my backpack to see if it's there.
- Baby koalas in their mother's pouch look so cute.
The echidna has a poisonous gland.
A gland is a part of the body that produces chemicals that can be released. Humans have glands in their necks, and when people get sick they get swollen. Some animals have glands that release poison or venom. Notice the following:
- My glands are swollen. I'd better see the doctor.
- The platypus has a poisonous gland but it does not usually use it.