According to the University of California at Berkeley, the duck-billed platypus and four species of spiny anteaters are the only mammals that lay eggs. All of them live in New Guinea and Australia.
Both the platypus and the anteaters are classified as monotremes because of their egg-laying reproductive method. In other ways, they are similar to mammals in that they have a lower jaw with a single bone and three bones in the middle ear. They also rapidly burn calories. In addition, they are hairy and produce milk to feed their young. Although they have no teeth, their snouts or beaks are modified to suit to their food-seeking style.Learn More
The short-beaked echidna and the duck-billed platypus are the two mammals that lay eggs. The echidna resembles a porcupine, but it is a completely different animal.Full Answer >
The platypus typically lays one to three eggs at one time. After mating, it builds a nesting chamber before it is ready to lay the eggs.Full Answer >
All three species of bluebirds – eastern, mountain and western – lay blue eggs. The blue eggs may have white streaks that resemble scratches, which may stem from urine or fecal stains, or when the female turns the eggs.Full Answer >
The eastern bluebird lays a light blue egg with brown speckles. Nests are commonly found in backyards, golf courses, agricultural fields and other areas with few trees and sparse ground cover.Full Answer >