Echidna
Echidnas are egg-laying monotreme mammals, also known as spiny anteaters.
Echidnas are egg-laying monotreme mammals, also known as spiny anteaters. They are native to Australia and New Guinea and are among the few living mammals that reproduce by laying eggs. The group includes the short-beaked echidna and three long-beaked echidnas.
Classification
Echidnas belong to the family Tachyglossidae in the order Monotremata. They are divided into two genera: Tachyglossus and Zaglossus.
Species and range
The living echidnas include the short-beaked echidna and three long-beaked echidnas. They are found in Australia, Tasmania, and New Guinea, with long-beaked forms mainly associated with New Guinea.
Physical traits and diet
Echidnas have spines, coarse hair, a small mouth, strong digging claws, and a long sticky tongue. Their diet consists mainly of ants, termites, worms, and other small invertebrates.
Reproduction
As monotremes, echidnas lay eggs rather than giving live birth. Females typically lay a single leathery egg per breeding cycle.
Key facts
- Echidnas are monotremes, a rare group of egg-laying mammals.
- They are covered in spines, which are modified hairs, and have a long snout and sticky tongue.
- The group includes one short-beaked species and three long-beaked species.
- Echidnas occur in Australia, Tasmania, and New Guinea.
- They are the only living mammals, with the platypus, to lay eggs.
Echidnas have no native range in Canada, but they are a notable example of mammalian evolution and are often used in Canadian wildlife and biology education as an example of monotremes.
Frequently asked questions
What is an echidna?
How many species of echidna are there?
Where do echidnas live?
What do echidnas eat?
Are echidnas mammals?
References
- PBS Nature — https://www.pbs.org/wnet/nature/blog/echidna-fact-sheet/Supports: Classification, family, genera, species count, and range.
- Britannica Kids — https://kids.britannica.com/kids/article/echidna/390120Supports: Egg-laying mammal status, common name, species overview, and basic traits.
- NSW Environment and Heritage — https://www.environment.nsw.gov.au/topics/animals-and-plants/native-animals/native-animal-facts/land-mammals/echidnasSupports: Distribution in Australia, Tasmania, and New Guinea, and habitat breadth.
- National Geographic — https://www.nationalgeographic.com/animals/article/echidna-egg-laying-mammal-love-trainSupports: Monotreme status, distribution, and general biological notes.