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New research suggests that climate changecoolercreaturesdensedistancesefficientelbowsenduranceevolutionaryfunctionhabitslandscapemillionparticularpawspreysimilarspeciesstylesvictims helped dogs develop from changecoolercreaturesdensedistancesefficientelbowsenduranceevolutionaryfunctionhabitslandscapemillionparticularpawspreysimilarspeciesstylesvictims resembling cats to the way they are today. Researchers from Brown University in the USA believe that 40 changecoolercreaturesdensedistancesefficientelbowsenduranceevolutionaryfunctionhabitslandscapemillionparticularpawspreysimilarspeciesstylesvictims years ago, dogs were smaller and hunted like cats. They hid, stalked and ambushed their changecoolercreaturesdensedistancesefficientelbowsenduranceevolutionaryfunctionhabitslandscapemillionparticularpawspreysimilarspeciesstylesvictims. As climate change transformed Earth's changecoolercreaturesdensedistancesefficientelbowsenduranceevolutionaryfunctionhabitslandscapemillionparticularpawspreysimilarspeciesstylesvictims, the physique and food-gathering changecoolercreaturesdensedistancesefficientelbowsenduranceevolutionaryfunctionhabitslandscapemillionparticularpawspreysimilarspeciesstylesvictims of dogs changed. Thick forests that once covered the North American continent started to become less changecoolercreaturesdensedistancesefficientelbowsenduranceevolutionaryfunctionhabitslandscapemillionparticularpawspreysimilarspeciesstylesvictims as the planet became changecoolercreaturesdensedistancesefficientelbowsenduranceevolutionaryfunctionhabitslandscapemillionparticularpawspreysimilarspeciesstylesvictims. The emergence of grassland meant dogs had fewer places to hide to ambush their changecoolercreaturesdensedistancesefficientelbowsenduranceevolutionaryfunctionhabitslandscapemillionparticularpawspreysimilarspeciesstylesvictims. To adapt, they evolved their hunting changecoolercreaturesdensedistancesefficientelbowsenduranceevolutionaryfunctionhabitslandscapemillionparticularpawspreysimilarspeciesstylesvictims and slowly grew longer legs.

The scientists analysed how dogs have evolved by looking at the changecoolercreaturesdensedistancesefficientelbowsenduranceevolutionaryfunctionhabitslandscapemillionparticularpawspreysimilarspeciesstylesvictims and teeth of 32 different changecoolercreaturesdensedistancesefficientelbowsenduranceevolutionaryfunctionhabitslandscapemillionparticularpawspreysimilarspeciesstylesvictims that lived between two million to 40 million years ago. The researchers said that the dogs' elbows, in changecoolercreaturesdensedistancesefficientelbowsenduranceevolutionaryfunctionhabitslandscapemillionparticularpawspreysimilarspeciesstylesvictims, were good indicators of changecoolercreaturesdensedistancesefficientelbowsenduranceevolutionaryfunctionhabitslandscapemillionparticularpawspreysimilarspeciesstylesvictims change. Dogs from 40 million years ago had elbows that were more changecoolercreaturesdensedistancesefficientelbowsenduranceevolutionaryfunctionhabitslandscapemillionparticularpawspreysimilarspeciesstylesvictims to those of cats. Their changecoolercreaturesdensedistancesefficientelbowsenduranceevolutionaryfunctionhabitslandscapemillionparticularpawspreysimilarspeciesstylesvictims was to allow the front changecoolercreaturesdensedistancesefficientelbowsenduranceevolutionaryfunctionhabitslandscapemillionparticularpawspreysimilarspeciesstylesvictims to swivel so they could grab and hold on to prey. Those elbows changed in dogs to allow them to become changecoolercreaturesdensedistancesefficientelbowsenduranceevolutionaryfunctionhabitslandscapemillionparticularpawspreysimilarspeciesstylesvictims runners and thus be able to pursue their prey over long changecoolercreaturesdensedistancesefficientelbowsenduranceevolutionaryfunctionhabitslandscapemillionparticularpawspreysimilarspeciesstylesvictims. Teeth in dogs also altered to be more changecoolercreaturesdensedistancesefficientelbowsenduranceevolutionaryfunctionhabitslandscapemillionparticularpawspreysimilarspeciesstylesvictims. They became more hard-wearing to be able to hold on to prey.