-
Now Playing: Grumpy koala growls outside cat door
-
Now Playing: Massive bison charges toward tour group in Yellowstone
-
Now Playing: Police officer on sled chases kids down icy road
-
Now Playing: Leopard strays into a residential area and injures at least four people
-
Now Playing: Planes struggle against crosswinds at airport
-
Now Playing: Cyclists bike on snow in four-day race in Swiss Alps
-
Now Playing: Firefighters hit the ice in full gear
-
Now Playing: Wily coyote crashes boat show, caught and released
-
Now Playing: Playful pup can't get enough of the snow
-
Now Playing: River of chocolate blocks traffic on highway after tanker overturns: Authorities
-
Now Playing: Surfer, dolphins ride together off California coast
-
Now Playing: Polar bear mom cuddles her cub
-
Now Playing: Moose on the loose wanders into Alaska hospital
-
Now Playing: Police send condolences to officers mourning burned Krispy Kreme truck
-
Now Playing: Bald eagle lands on football fan during game
-
Now Playing: Scuba Santa goes swimming with sharks
-
Now Playing: Pianist tickles ivories to comfort elephants at rehab sanctuary
-
Now Playing: It's raining money on one NJ highway
-
Now Playing: Meteor lights up sky over Mexico City
-
Now Playing: Cat rescued after being stuck between walls for hours