3. These bear cubs staying in shape during the off-season.
4. This dog looking for a pickup game.
6. This photobombing dog with an itchy butt.
7. This dog testing the safety of the trampoline.
8. This cat demonstrating how to strut your stuff.
9. This dog doing some power squats.
10. This Jack Russell acting all human.
11. This kitten slash personal trainer.
15. This dog one-upping the bird and the tennis ball.
- Today's the fourth and final day of the Democratic National Convention — Hillary Clinton is preparing for the biggest night of her life 🇺🇸
- The US Justice Department backed Obama's transgender policies in court after Texas and other states sued to block the rules.