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Are All Mammals Warm-Blooded?

Many assume that all mammals were warm-blooded, and while the majority are, there are some that are heterothermic. Most mammals are endothermic, which means they can regulate their body temperature. Some mammals, such as the Arctic ground squirrel, are classed as heterothermic, allowing their surrounding environments to affect their body temperature. Please read on if …

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Why Are Beavers Good For The Environment?

Many see beavers as a nuisance, but they are great for the environment. In this article, I wanted to explore some of the reasons and give tips on protecting trees in your area. Beavers are essential in establishing and maintaining biodiversity in wetlands and providing new habitats for other plants, animals, and insects. Beavers have …

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American Black Bear – Everything You Want To Know

Last year, when I was backpacking across the United States, I had a chance to visit Yellowstone National Park in Wyoming and Montana. I had many opportunities to view black bears and other wildlife. American black bears are known by their species name Ursus americanus.  Black bears are medium-sized bears who live throughout most of …

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Where To See Bighorn Sheep In North America

Bighorn sheep are one of my favorite mammals in North America, but the bighorn sheep population was once in decline.  Due to reintroduction by many states, the bighorn is now found in quite a few areas in North America. The Rocky Mountains and Sierra Nevada bighorn sheep are found in the cooler mountainous ranges from …

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How Do Whales Breastfeed Underwater?

On a recent whale-watching trip, I asked one of the guides about how whales breastfeed underwater. His answer intrigued me, so I conducted further research on this when I returned to shore. Whales have inverted nipples inside mammary slits. When the calf is ready to feed, they dive underneath the mother and nudge the mammary …

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