Yosemite National Park
Life of the Bear
Spring: April to June
Food — Grasses, forbs and other plants.
Bears are coming out of their dens. Cubs are just 10 pounds and still nursing. Their mothers begin to teach them about finding natural sources of food. Time to forage for food in lush meadows.
Summer: June to August
Food — Currants, raspberries, chokecherries and manzanita berries.
Bears are crepuscular (active at dawn and dusk), napping in the shade or hanging out in berry patches during the day. You may not see any bears, but they are around. They are actually quite shy and very quiet.
Fall: September to November
Food — Elderberry, acorns and insects.
Bears will travel to higher elevations in search of elderberries or use their claws to rip apart logs to eat the insects inside. Acorns from oak trees are an important source of food.
To survive winter, bears must build up their fat reserves during the fall months. Bears consume up to 20,000 calories a day and will seek out high calorie foods.
Winter: December to March
Food — Little natural food is available.
To conserve energy, most bears hibernate through winter. Bears may wake up and leave the den in search of food. Proper food storage is still important during these months!
Cubs born late January/early February weigh only 10—16 oz. Bears can lose half of their body weight during hibernation. In Yosemite Valley, many bears hibernate in the talus slopes along the cliff walls.
Yosemite In Depth
- Yosemite National Park
- Activities & Programs
- Bears in Yosemite
- Beyond Yosemite
- Campgrounds in Yosemite
- Camping in Yosemite
- Effects of Altitude
- Eight Tips for Yosemite
- Evolution of Yosemite Valley
- Flora & Fauna
- Heart of Yosemite
- Highlights
- Hikes in Yosemite
- History of Yosemite
- Hybrid Buses
- Important Numbers
- John Muir
- Just For Kids
- Keep Wildlife
- License Plates
- Life of the Bear
- Mountain Lions
- Oh, Ranger!
- Only A Day
- Plan For Future
- Plan Your Visit
- Preserve Yosemite
- Red Bear, Dead Bear
- Sights To See
- Spirit Of Yosemite
- Visitor Services
- Walking & Hiking
- Welcome to Yosemite
- Who's Who in the Park
- Yosemite Regulations
- Yosemite Waterfalls
- Event Calendar
- Yosemite Map
- Yosemite Photos
- Recent Yosemite News
News from the Parks
November 21, 2008 - 10:01am
I always look forward to getting my Frommer's newsletter every week. Not only are they budget travel saavy, they inspire me to get out there no matter the weather! Here are their top five picks for cozy camping.
November 21, 2008 - 9:56am
The Nisqually Road in Mount Rainier National Park will reopen today, a day earlier than expected. The road, and the park, have been closed since Nov. 12 when Kautz Creek jumped its banks and flooded the main road into the park.
November 21, 2008 - 9:55am
Reporting from Glacier National Park -- No one knew what to expect on the trail to Grinnell Glacier one late summer morning, but a second bull moose less than an hour out was hardly a good sign. During September and October -- mating season -- it's always best to give the spindly-legged animals plenty of room.
November 21, 2008 - 9:07am
An upcoming National Park Service (NPS) rule change could greatly benefit mountain bicycling by improving the administrative process for opening trails to bicycles. IMBA has been asking the agency to revise its policies since 1992, because the current "special regulations" process is needlessly cumbersome and treats bicycles like motorized vehicles.
November 21, 2008 - 8:55am
On our recent trip to Hawaii we had a feeling that things were less busy than usual. Now there are some numbers to back up our hunch: The national parks in the state saw a drop in attendance of more than 50,000 visitors during the month of October.


