Maruleeg

The Maruleeg were an intelligent species of four-legged animals who originated from the planet Escrib. During their height, they were widely considered to be the most powerful civilization in their local Gigaverse.

Biology
Using Earth animals as a reference, the Maruleeg are best described as a cross between large flying squirrels and lizards, with some platypus elements thrown in. They are about 0.7 meters in length. They were warm blooded, laid eggs, and had scales as well as poisonous back claws. Their ability to glide come from the thin layer of skin that grew from their front legs to their rear legs. Their poisonous claws cause their play to experience great pain without killing the victim, allowing the Maruleeg to attack and defeat their victim. Their hollow bones, however, were a detriment that made them very weak to blunt force weapons and attacks.

Evolution
Life was believed to begin by the Maruleeg when a comet crashed into Escrib. It took several billion years before life evolved into early Maruleegi. The first recognizable ancestor was the Keruma, a fish-like reptilian that spent most of its life in the green waters of Escrib's oceans nearly one billion years before the Maruleeg evolved.

Chronology of Sapient Maruleegi History
The timeline of Maruleegi history spans about four hundred quintillion years (~400,000,000,000,000,000,000 years, or 4x1020in scientific notation), starting from their emergence as the first sapient race on Escrib (classified as Marulis sapiens using traditional binomial nomenclature) to their eventual destruction. This extremely long amount of time is broken down into supereons and eons, which are further broken down into eras and periods.

An incomplete list of this is below: