Salmon

• Life hack: they have the ability to detect fresh water and salt water

Salmon is a term used to describe several species of ray-finned fish in the family Salmonidae. As you probably already know, they are excessively farmed in many parts of the world. So, salmon are anadromous, which means that they migrate from the sea up into fresh water to spawn. In other words, salmon hatch in fresh water, migrate to the ocean and then return to fresh water to reproduce.

therefore, salmon have an ‘internal GPS’ that allows them to detect variations in the Earth’s magnetic field, allowing them to navigate from fresh water to salt water. According to animal experts, this type of fish can also use its sense of smell to navigate.