Multiple choice

An egg laying mammal is

  1. delphinus

  2. macaca

  3. ornithorhynchus

  4. macropus
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Ornithorhynchus is the genus name for the platypus, which is one of only two extant species of egg-laying mammals (monotremes). The other is the echidna. Delphinus refers to dolphins, Macaca refers to macaques (primates), and Macropus refers to kangaroos - all of which are placental mammals that give birth to live young.

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