Giant Panda

This is a large panda summoned by Pain.

Appearance
It resembles a regular panda bear with the exception that it has a number of large piercings all over its body, wears a black sash around its waist and possesses Rinnegan eyes. Its arms and legs are all black in colour while everything else is white. It also has black markings around its eyes.

Abilities
The giant panda had the ability to harden its body, creating a defensive barricade for its summoner. Like all other animals summoned by Pain, it is likely that the animal had a shared field of vision with Nagato.

Tale of Jiraiya the Gallant
It is summoned during Pain's fight with Jiraiya to protect the former from the latter's Sage Art: Hair Needle Senbon. After it takes the blunt of this attack, Pain desummons it.

Trivia

 * In the Ultimate Ninja Storm video game series, a Stuffed Giant Panda Doll appears as a Substitution item.
 * Starting in Naruto Shippūden: Ultimate Ninja Storm 3, Nagato summons it to crush his opponent as part of one of his combos.