During the dry season there is not enough water to support the dazzling array of life in the river. But for a brief period, the river transforms into a veritable living rainbow.
Butterflies and other insects are arthropods -- they have skeletons on the outside of their bodies. The exoskeleton helps keep water inside their bodies so they don’t dry out.
A harried park system, pressured by federal funding cuts and urban development, now faces hungry bears. Heat and dryness is killing the core of the bears' diet, making them desperate.
A harried park system, pressured by federal funding cuts and urban development, now faces hungry bears. Heat and dryness is killing the core of the bears' diet, making them desperate.
A blood-red waterfall pours very slowly out of the Taylor Glacier in Antarctica's McMurdo Dry Valleys. The sealed lake from which it flows contains a primordial ooze of microbes.