Barunka Zahradníková

Barunka Zahradníková

Barunka Zahradníková
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Sailfish - A sailfish can be recognized by the large dorsal fin that looks like a sail that has accordion pleats. That’s the first test. If the top of the fish has a sail, it’s a sailfish.

The world’s fastest fish is the Indo-Pacific sailfish, Istiophorus platypterus. This sportfish can swim up to 68 miles per hour by standards a cheetah can run to to 70 miles per hour.

Tiny Larval Leaf Scorpionfish, Hawaii. Lacking any other defence, many larval fish have adapted transparency as a method of camouflage   |  Photo Chris Newbert, Minden Pictures

Larval Leaf Scorpionfish (photograph by Chris Newbert, Minden Pictures). Lacking any other defense, many larval fish have adapted transparency as a method of camouflage—such as this tiny, see-through larval leaf scorpionfish in Hawaii.