Good old-fashioned snow day may be healthy for kids, doctors say: 'Permission to unplug'

Travel expert Colleen Kelly explains why airlines are canceling flights and what travelers are entitled to if they choose not to travel during the winter storm on 'Fox Report.'

These four common foods may be wrecking your gut health, expert warns

Celebrity nutritionist Daryl Gioffre, from Naples, Florida, tells Fox News Digital about the potential side effects of an ice cream emulsifier called Polysorbate 80, which alters the balance of gut bacteria.

Fun fact: Pigeons can learn to tell the difference between Monet and Picasso paintings

Did you know that pigeons can learn to distinguish Picasso and Monet paintings, and that hummingbirds are the only birds that can sustain backwards flight?

Their husbands were killed by tigers. Now these women are restoring the big cat’s habitat

EDITOR’S NOTE:  Call to Earth is a CNN editorial series committed to reporting on the environmental challenges facing our planet, together with the solutions. Rolex’s Perpetual Planet Initiative has partnered with CNN to drive awareness and education around key sustainability issues and to inspire positive action.