What types of symmetry do salmon have?

Salmon exhibit bilateral symmetry. This means that their body can be divided into two mirror-image halves along a central plane (the midline).

Here's how it manifests in their anatomy:

* External:

* Shape: Their body is generally streamlined and symmetrical from head to tail.

* Fins: The dorsal fin, anal fin, and paired pectoral fins are all symmetrical on each side.

* Eyes: They have one eye on each side of their head.

* Mouth: Their mouth is symmetrical with the same number and arrangement of teeth on either side.

* Internal:

* Organs: Most internal organs, such as the heart, liver, and kidneys, are located symmetrically on either side of the body.

Note: While salmon have bilateral symmetry, their coloration patterns can sometimes be more complex and may not be perfectly symmetrical. This is especially true during spawning season when males develop red or orange coloration, which can be more pronounced on one side than the other.