The Gruslen is a Tyrannian Petpet released April 3, 2001 that resembles a tiger with tusks. They may appear to be cute and harmless but if you anger them you could be in for a visit to the Neopian Hospital. They were discovered by Professor J. Kugar.
As of September 2013, the Gruslen comes in 19 different colours:
- The Neopedia article Gruslens was released on December 11, 2003.
- The Gruslen was recognized by the PPL in week 43.
- Owning a Neopet with a Gruslen aged 99+ days awards an avatar, released on April 7, 2004.
- Famous Gruslens: Sarah and Daisy