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To pick up your bearded dragon, move your hand slowly towards its body from the side or front. Scoop its entire body up in your hand in a single movement. When you’re holding the dragon, make sure to support its full body, including legs and tail.  If you pick a dragon up suddenly from the rear, it may mistake your hand for a predator and bite you. Never pick a dragon up by its tail. Unlike other lizards, their tails do not regenerate. You could cause serious harm to your lizard by grabbing it by its tail. If your dragon becomes aggressive and tries to bite you once you have picked it up, hold its body firmly with one hand (so its jaws can’t reach your fingers) and use your other hand to stroke its back. This will soothe the dragon and teach it that human contact is not a cause for fear.  If the dragon continues to act aggressively—or becomes even more aggressive—set it back in its cage. Wait 5 minutes, and pick the dragon up again. Be careful, however, as this effectively "rewards" the dragon for acting aggressively. If possible, it's better to hold the dragon until it calms down and then replace it in the cage so that it learns that calm behavior will help it get what it wants. Aggressive dragons take longer to train, but don’t give up hope. Given enough time, they’ll get used to being touched and handled. Frequent human contact is the best way for a bearded dragon to learn that you are not a threat. Hold and handle your dragon daily, for about 10 minutes at a time, and it will become increasingly tame and comfortable with your presence. Dragons will become stressed if they’re handled for long periods of time. It’s better to have multiple, short handling sessions each day rather than a single, long session. Once your dragon has become accustomed to being touched and handled by you, you can train it to eat out of your hand. Simply hold a mealworm between two fingers and extend it near the dragon’s mouth. If your dragon is very comfortable with being handled out of its cage, you can hold a mealworm in your palm and let the dragon eat out of your hand. Prior to this point, you’ll need to feed your dragon in its cage using tweezers. Use the tweezers to drop mealworms down near your dragon.

Summary:
Handle your bearded dragon correctly. Maintain a firm hold when petting aggressive dragons. Handle your bearded dragon daily for short periods of time. Feed your dragon by hand.