TASK DEFINITION: In this task, we ask you to rewrite a sentence in simple English without changing its general meaning. Essentially, you want to make the sentence easier to read by using simpler words, utilizing more straightforward sentence structures, and omitting non-essential information etc.
PROBLEM: Many predatory mammals have protractile claws that can partially hide inside the animal 's paw , especially the cat family , Felidae , almost all of whose members have fully protractible claws .

SOLUTION: Many predatory mammals have claws that can hide inside the animal 's paw , especially animals such as the cat .

PROBLEM: Cungagnaq ( Russian : , ; date of birth unknown - d . 1815 ) is venerated as a martyr and saint ( as Peter the Aleut ; Russian : , ) by some jurisdictions of the Eastern Orthodox Church .

SOLUTION: Peter the Aleut ( d . 1815 ) , also known as Cungagnaq , is a saint in some parts of the Eastern Orthodox Church .

PROBLEM: All beaks are composed of two jaws , generally known as the upper mandible ( or maxilla ) and lower mandible ( or mandible ) .

SOLUTION:
Beaks are made of an upper and lower mandible .