These invasive critters remove incredible amounts of food from the water.
Insects aren't the only animals without backbones. There are many other invertebrates! How many can you name?
Just like people at a mall, these tiny wingless insect-like creatures mill around in huge numbers.
These tiny, uncommon animals have pairs of bristles on each segment. They are sometimes called feather duster worms!
Winged mapleleaf, rock-pocketbook, monkeyface—sounds like World Wrestling Federation wrestlers?
You're likely to encounter these almost anytime of year while exploring outdoors. Learn the do's and don'ts with ticks.
At a Glance
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These invasive critters remove incredible amounts of food from the water.
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The isopod is a scavenger that uses its seven pairs of legs to move around.
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Just like people at a mall, these tiny wingless insect-like creatures mill around in huge numbers.
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These tiny, uncommon animals have pairs of bristles on each segment. They are sometimes called feather duster worms!
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Crayfish are related to lobsters, but live in freshwater.