Sandsharks were small hostile red-orange creatures that were found "swimming" in the sands of Outpost X11. They emerged from the sand to attack Ratchet if they were close. At Outpost X11 the duo had to eliminate all the sandsharks if they were to acquire Skid McMarx's Hoverboard Z3000, who pretended to be too injured to fight them himself. When taunted with the Taunter, and unable to reach Ratchet, they jumped up and down and snarled angrily. The Sandsharks also maneuvered similar to those of the Peckbots in which they appear to attempt to run back and forth to either avoid long distance fire or have trouble walking on their legs.
Sandshark nests were an organism which spawned sandsharks. They were only encountered at Outpost X11 on planet Aridia. When Ratchet and Clank found Skid McMarx, he requested the duo to destroy all of the surrounding sandsharks so that he may safely return to his ship. In return he rewarded them with the Z3000 Deluxe Hoverboard.
The Sandshark nest was a bulbous object, with orange skin and green markings, sporting small spikes. It spat out sandsharks through an orifice at the atop its bulb-shaped organ, which is supported by a body attached to three small legs. It is immobile. Other than its ability to bombard targets with sandsharks, it was defenseless and threat-less on its own.
An older model of this enemy can be seen in the Insominac Museum in Ratchet & Clank: Up Your Arsenal. This version has four legs, a larger shark fin, two eyes, and a white monotone physical appearance due to a lack of color.
Other species of Sandsharks were known to exist, such as the Seven-Legged Sand Shark, they were said to move quite fast. Although is was never directly encountered in game - only mentioned by Dallas in an online Vox News Update.