Imagine running a marathon while the air around you is filled with smoke. You’d get tired quicker, have uncontrollable coughing, and eventually, give up entirely. You may not think oxygen is as important to fish as it is to humans, but this analogy is perfect for our salmon and coldwater fish populations. Fish actually breathe the air (oxygen) inside the water. Remember, water is H2O– and that O means something! It is the key to determining if a migrating salmon is a champion
Soaring through the air, eyes glinting as it searches out its next meal. It’s not necessary for them to flap their wings because they’re adapted to gliding on existing wind currents, which makes for a pleasant aerial view to seek out unsuspecting prey below. It may be dramatic to call them murderers, but they would take it as a compliment. Their sharp talons are evolved to be killer weapons as they grab their prey in the head or neck, immobilizing them almost immediately. Wit
Imagine you are floating down a river wearing a thin coat of armor. You jostle against rocks as the current pushes you down a tight channel. Sometimes you’re able to grab onto a plant or branch hanging in the water. This gives you a sense of calm and safety as the water rushes around you. Clinging to a branch or rock, you finally have time to sneak a snack before carrying on your never-ending float. Now, imagine you’re the size of a penny. Imagine you’re a caddisfly. Although
