do reptiles produce milk

Do Reptiles Produce Milk?

Most people are familiar with mammals and birds producing milk, but do reptiles also produce milk? To answer this question, let’s take a look at the biology of reptiles and how it compares to the reproductive functionality of mammals.

The Biology of Reptiles

Reptiles, unlike mammals, have very unique and distinct reproductive systems that have evolved over time to suit their particular environments.

  • They generally lay eggs to reproduce, as opposed to mammals and birds, who give birth to live young.
  • Their eggs have an external protective coating that protects them from drying out and other external factors.
  • There is no direct link between the female reptile and her young; they typically hatch after incubation.

All reptiles, including turtles, crocodiles, lizards, snakes, and tuataras, have reproductive systems that have adapted to survive in the wild. But do they produce milk? The short answer is, no not usually.

Do Reptiles Make Milk?

Generally speaking, reptiles do not produce milk and do not nurse their young. Even though mammals, such as humans and other primates, produce milk for their young, reptiles are equipped differently.

Reptiles and birds share many similarities in their reproduction, but one major difference is that birds lay eggs and, in some species, will produce milk for their young. Reptiles, on the other hand, cannot produce milk and therefore rely on their eggs for nourishment.

Reptiles share some of the same reproductive hormones as mammals, which could suggest the possibility of milk production, but in practice the hormones are not the same and therefore milk production is not possible.


Although reptiles have reproductive hormones that are similar to mammals in some ways, they cannot produce milk. Mammals, on the other hand, have evolved to produce milk to nourish their young, while reptiles rely on the nourishment provided by their eggs.

Therefore, while mammals can produce milk, reptiles cannot and rely on the nourishment provided by their eggs as their main source of nourishment for their young.

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