At the institute, the biologists put their fish into custom-built respirometers and then simulated the presence of a predator by applying light suction to the fish and squeezing them gently.
Yes, this sounds exactly like the kind of explanation you make up on-the-spot when your five-year-old asks, "What makes the fishie puff? Search for: After inflating, McGee and Clark's fish took an average of five hours and 36 minutes for their metabolisms to return to normal. The pufferfish is also typically exhausted from the exertion of puffing up. Being able to puff up while also having lots of spines on your body is also a great way to ward off predators.
Want more news like this? Yet the oxygen levels in the water around them kept dropping, and the fish moved the flap above their gills, indicating they were taking oxygen in through their gills. Videos Activities.
Scuba Skydiving 103905 Views. But if they are frightened while in the air, perhaps while being fished out of the water, they will also gulp in air.
Why is puffing bad for a pufferfish? Pufferfish can instinctually inflate their bodies whenever they feel threatened as soon as they hatch.
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Marine biologists at James Cook studied the behavior and found that the pufferfish forces its body to puff by unhinging its jaw to widen its mouth. Studies have shown that it can take an average of 5. Videos Suckling Humpback Whale Calf. This expansion makes the pufferfish look much more intimidating than usual, with the goal of scaring off predators.