While most mammals give birth to live young, there are a few unique exceptions known as monotremes. These fascinating creatures not only lay eggs but also possess characteristics distinct to mammals. Here are the five mammals that lay eggs:
- Platypus: The platypus is perhaps the most famous egg-laying mammal. Native to Australia, it has a duck-bill, webbed feet, and a flat tail. Female platypuses lay one to three eggs and incubate them by curling around them.
- Short-beaked Echidna: Also known as the spiny anteater, the short-beaked echidna is found in Australia and New Guinea. After laying a single egg, the female carries it in a pouch on her belly until it hatches.
- Long-beaked Echidna: This echidna species has a long snout and is primarily found in New Guinea. Similar to the short-beaked echidna, the long-beaked echidna lays eggs that it incubates in its pouch.
- Western Long-beaked Echidna: A variation of the long-beaked echidna, it shares similar breeding habits and habitats. It is specifically adapted to the colder highland regions of Papua New Guinea.
- Eastern Long-beaked Echidna: Also native to New Guinea, this echidna has distinct adaptations suited for its environment. Like its relatives, it lays eggs, making it part of this unique group of mammals.
In summary, while they may be few in number, these egg-laying mammals offer a remarkable glimpse into the diversity of reproductive strategies in the animal kingdom. Monotremes stand out as a reminder that nature’s adaptations can be both surprising and extraordinary.