When they come in contact with humans, they're not shy at all. In fact, they're begging machines. Some people think giving them handouts will help but it actually jeopardizes their health. If they eat grasses, flowers and bugs like they're supposed to, they accumulate brown fat which burns more slowly, metabolizes efficiently, and creates more energy. If they eat sandwiches, Doritos and other processed foods, they build up lots of yellow fat but it burns too quickly which puts them at greater risk of starving to death during hibernation. If you happen to share your lunch with a marmot just remember, your not helping them, your hurting them.