One level back to Mammals 2.3.3.3.1.2.3.3.3. [Umbilicals] (with placenta) One level further to [Marine Mammals] (fins) One level further to [Land mammals] [Quadruped] One level further to [Primates] (with Hands) [Marine Mammals] (fins) [Marine Mammals] (fins) [Marine Mammals] (fins) 2.3.3.3.1.2.3.3.3.1. One level further to [Manatees] One level further to [Seals] One level further to [Whales] One level back to [Marine Mammals] (fins) [Manatees] 2.3.3.3.1.2.3.3.3.1.1. One level back to [Marine Mammals] (fins) [Seals] 2.3.3.3.1.2.3.3.3.1.2. [Dog Seals] [Seal, Elephant Seal] 2.3.3.3.1.2.3.3.3.1.2.1. [Ear seals] [Sea lion] 2.3.3.3.1.2.3.3.3.1.2.2. [Walruses] 2.3.3.3.1.2.3.3.3.1.2.3. One level further to [Dog Seals] [Seal, Elephant Seal] One level further to [Ear seals] [Sea lion] One level further to [Walruses] One level back to [Marine Mammals] (fins) [Whales] 2.3.3.3.1.2.3.3.3.1.3. [Baleen Whale] [Blue Whale] 2.3.3.3.1.2.3.3.3.1.3.1. [Beaked Whale] [Duck Whale] 2.3.3.3.1.2.3.3.3.1.3.2. [Tooth Whales] [Dolphin] 2.3.3.3.1.2.3.3.3.1.3.3. One level further to [Baleen Whale] [Blue Whale] One level further to [Beaked Whale] [Duck Whale] One level further to [Tooth Whales] [Dolphin] [Land mammals] [Quadruped] [Land mammals] [Quadruped] [Land mammals] [Quadruped] 2.3.3.3.1.2.3.3.3.2. One level further to [Ungulates](Hoofed animals) One level further to [Animals with Claws] One level further to [Rodents] One level back to [Land mammals] [Quadruped] [Ungulates] 2.3.3.3.1.2.3.3.3.2.1. [Perissodactyla][Odd-toed ungulates] 2.3.3.3.1.2.3.3.3.2.1.1. [Pachyderm] [Claws] 2.3.3.3.1.2.3.3.3.2.1.2. [Elephants] 2.3.3.3.1.2.3.3.3.2.1.3. One level further to [Perissodactyla][Odd-toed ungulates] One level further to [Pachyderm] [Claws] One level further to [Elephants] One level back to [Land mammals] [Quadruped] [Animals with Claws] 2.3.3.3.1.2.3.3.3.2.2. [Herbivore] [Sloth] 2.3.3.3.1.2.3.3.3.2.2.1. [Insect Eater] 2.3.3.3.1.2.3.3.3.2.2.2. [Predators] 2.3.3.3.1.2.3.3.3.2.2.3. One level further to [Herbivore] [Sloth] One level further to [Insect Eater] One level further to [Predators] One level back to [Land mammals] [Quadruped] [Rodents] 2.3.3.3.1.2.3.3.3.2.3. [Lagomorpha] (Rabbit) 2.3.3.3.1.2.3.3.3.2.3.1. [Real rodents] 2.3.3.3.1.2.3.3.3.2.3.2. [Shrews + flying lemurs] 2.3.3.3.1.2.3.3.3.2.3.3. One level further to [Lagomorpha] (Rabbit) One level further to [Real rodents] One level further to [Shrews + flying lemurs] [Primates] (with Hands) [Primates] (with Hands) [Primates] (with Hands) 2.3.3.3.1.2.3.3.3.3. One level further to [Apes] [Lemurs] One level further to [Monkeys] [Baboons, Meerkats] One level further to [Great Ape alike] One level back to [Primates] (with Hands) [Apes] [Lemurs] 2.3.3.3.1.2.3.3.3.3.1. One level back to [Primates] (with Hands) [Monkeys] [Baboons, Meerkats] 2.3.3.3.1.2.3.3.3.3.2. One level back to [Primates] (with Hands) [Great Ape alike] 2.3.3.3.1.2.3.3.3.3.3. [Gibbons] 2.3.3.3.1.2.3.3.3.3.3.1. [Great Ape] 2.3.3.3.1.2.3.3.3.3.3.2. People 2.3.3.3.1.2.3.3.3.3.3.3. One level further to [Gibbons] One level further to [Great Ape] One level further to People

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[Umbilicals] (with placenta)