Interesting question, though strange wording, if you mean which mammal has the longest lifespan in years that would be the Bowhead whale, which lives for 200 years or possibly longer, the human lives longer in terms of heartbeats, every other mammal lives roughly a billion heartbeats of life whilst humans thanks to medicine live roughly 2 billion over 80 years. if you meant body length that would be the blue whale, the longest specimin being just over 33 meters long. if we limited ourselves to land mamals girafes at 5.8 meters are greatest length and humans are the greatest lifespan length at up to 122 years if you have free healthcare a good diet and avoid the worst genes for heart disease and dimentia.
spam fails_task lang_mismatch pii not_appropriate hate_speech sexual_content quality toxicity humor helpfulness creativity violence