Some Bears Get SUPER Fat before Hibernation
By angelamontana

Posted: October 9, 2018

Here are a couple of interesting Twitter posts from Alaska’s Katmai National Park.  We know this isn’t Montana, but it is crazy how much weight bears put on in preparation for hibernation up there.

For example, pictured above is bear “747” with this caption:

To make up for weight lost during hibernation, adult bears have to add several hundred pounds to their body over the summer. Here is bear 747, June 30th to Aug 31st. If he was a constellation, we’re pretty sure he’d be ursa double major.

Here are two photos of the same brown bear sow, referred to as “409”, taken within a three month span: