What animals cannot live without mothers first milk?

Many animals rely on their mother's first milk, called colostrum, for survival in their early stages of life. Here's why:

* Colostrum is packed with antibodies: These antibodies protect the newborn from infections and diseases they're vulnerable to.

* It provides essential nutrients: Colostrum contains high levels of protein, vitamins, and minerals crucial for the newborn's growth and development.

* It helps with digestion: Colostrum aids in the development of the newborn's digestive system.

Here are some examples of animals that absolutely cannot live without their mother's first milk:

* Mammals: This is the defining characteristic of mammals. All mammals, from tiny shrews to massive whales, rely on their mothers' milk for survival.

* Some birds: While most birds are fed by their parents with regurgitated food, certain species, like penguins and some types of parrots, rely on their mothers' milk-like substance called "crop milk" to nourish their chicks.

Important Note: While many animals require colostrum, there are some exceptions. For example, certain species of mammals, like hedgehogs, have a longer gestation period and are born with a more developed immune system, thus requiring colostrum for a shorter period.

If you're interested in learning more about specific animals and their dependence on their mothers' milk, you can research them online or consult with a veterinarian or animal expert.