Wolves
| The primary cause of death for adult wolves is wolves from other packs. So howling has its costs (running into the opposition) as well as its benefits (getting back with the pack). |
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| Wolves are careful about where & when they howl because their sorrowful call can be heard for miles and by any wolf within earshot. |
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| Wolves maintain their territories in several ways: by physically chasing and attacking intruders and by using a warning system that includes howling and scent marking. |
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| When wrestling and playing with fellow pack members, wolves will bite at each other without drawing blood. |
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| It is the wolf's relatively long tail that helps it balance while running or turning at top speed. |
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Parasites such as worms and lice are a great threat to wolves of all ages. They are also susceptible to afflictions, such as Lyme disease, heartworm and arthritis. |
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