We know that hormones in Animals is different from plants hormones.so no we will study hormones in Animals
What is hormones in animals?
Hormones means a regulatory subjstance which are produce in organism for information transfer.
We know that squirrels when it is in a scary situation,their bodies prepare for either fighting or running away.so both fighting and runing are different thing and that are done by different hormones.
now we will take second example
suppose if a chemical signal were to be sent , it would reach all cells of the body and provide the” wide ranging changes”. This is done in many animals, including human beings using a hormone called adrenaline that is secreted from the adrenal glands.so when hormones secreted by adernal glands then it will do particular task in our body.

Now in above figure there is different types of gland and hormones produce are also different.Before Learning glands first we will classified.
So there are two types of glands endocrine glands and exocrine glands .
i)Endocrine glands:- Endocrine glands are part of your endocrine system. They make hormones and release them into your bloodstream. These hormones control a number of important functions in our body for example
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- body growth and development
- mood
- reproduction
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so Endocrine Glands include:
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- Adernal glands
- Pituary glands
- hypothalamus glands
- thyroid glands
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Now we will see function of some endocrine glands
Adernal glands:-