Fish are a kind of animal that just makes a lot of eggs
A salmon offspring is when salmons mate and have babies.
Salmon want to protect their babies.
fast
when they finished making babies
So it can leave some babies which then will become a family and then it will grow and grow and will go on forever if it lasts.
Salmon
because its natural
Salmon is not popular all over the world but in many countries people eat salmon. Like in North America people eat Atlantic salmon {so do i} and most people enjoy it. Many of my friends enjoy eating salmon either in Sushi {Sashimi} or grilled in an oven or cooked with its skin on. So salmon is pretty popular all over the world.
As many other fish breathe through lungs, so do salmon.
Yes because female salmons probably born babies.
Babies
There are many different type of salmon so the specific answer will depend on the specific species. Generally though: Atlantic and Chinook Salmon would be the largest at about 150 cm while a common length for a Pink Salmon would only be 50cm