The list below shows every type of animal featured on this site, and tells what are the biggest animals of that type. So, follow the links below, to disciver more about the heaviest, largest, biggest, tallest and longest...

Animals  - The Blue Whale (biggest and biggest ever), African Bush Elephant (heaviest on land), Giraffe (tallest on land)

• Chordates - The Blue Whale (biggest and biggest ever), African Bush Elephant (heaviest on land), Giraffe (tallest on land)
• Vertebrates - The Blue Whale (biggest and biggest ever), African Bush Elephant (heaviest on land), Giraffe (tallest on land)
• Fish - The Whale Shark (biggest), Leedsichthys (biggest ever)
• Cartilaginous Fish - The Whale Shark (biggest), Megalodon Shark (biggest ever)
  
• Sharks - The Whale Shark (biggest), Megalodon Shark (biggest ever)
• Birds - Ostrich (biggest), Wandering Albatross (biggest flying), Elephant Bird (heaviest ever), Giant Moa (tallest ever), Kori Bustard (heaviest flying)
• Mammals - Blue Whale (biggest and biggest ever), African Bush Elephant (heaviest on land), Giraffe (tallest on land)
• Placentals - Blue Whale (biggest and biggest ever), African Bush Elephant (heaviest on land), Giraffe (tallest on land)
• Marsupials - Red Kangaroo (biggest), Diprotodon (biggest ever)
• Monotremes - Western Long Beaked Echidna (biggest)
  
• Echinoderms - Catala's Starfish (heaviest), or Midgardia Xandaros (longest arms)
• Arthropods - Japanese Spider Crab (biggest), American Lobster (heaviest), Coconut Crab (biggest on land)
  • Crustaceans - Japanese Spider Crab (biggest), American Lobster (heaviest), Coconut Crab (biggest on land)
  • Chelicerates
    • Arachnids
      • Spiders - Goliath Bird-Eating Spider (biggest ever)
  • Insects - Goliath Beetle (heaviest), Little Barrier Island Giant Weta (or Wetapunga) (heaviest as an adult), Atlas Moth (largest wings)
• Mollusks - Colossal Squid (biggest)
• Placozoans - Trichoplax Adhaerens (biggest, and only)
  
• Velvet Worms (Onychophora) - a species with no name (biggest by far)