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: As launch customer , and because of its early involvement before placing a formal order , Pan Am was able to influence the design and development of the 747 to an extent unmatched by a single airline before or since .

SOLUTION: Since Pan Am was the launch customer , Pan Am had a big say in the design and making of the 747 .

PROBLEM: In cryptography , a Caesar cipher , also known as Caesar 's cipher , the shift cipher , Caesar 's code or Caesar shift , is one of the simplest and most widely known encryption techniques .

SOLUTION:
The Caesar Cipher is also known as the shift cipher .