Related Clues:

• Severely criticizes
• The Marx Brothers, e.g.
• This puzzle's theme includes them
• See 98-Across
• Zoo contents
• Critters
• Savage sorts
• 1-, 2- and 3-Down, e.g.
• Fauna
• Living creatures
• Fiends
• Really rips
• Savages
• Attacks relentlessly
• Vicious sorts