Despite their massive size and relatively long lifespan, these whales consume a relatively simple diet consisting primarily of krill, a small aquatic life form that measures 1 – 2 centimeters on average with a maximum of around 6 inches. It also includes climate changes, water and noise pollution, mental and physical health (sickness and injuries that reduce the health and longevity of these majestic creatures) and other age affecting factors.Īs stated earlier, the blue whale is also the largest living creature globally, with the biggest blue whales growing to incredible lengths that are more than 100 feet and weigh over 150 tons when fully matured. Some of these factors include being hunted by humans (and rare killer whale attacks), food supply shortages, and the health of their food. Several factors can determine how long a blue whale is likely to live when it comes to age and longevity. In fact, the oldest recorded blue whale was estimated to have a lifespan of 110 years! Reaching lengths of between 70 – 90 ft on average, the blue whale is the largest living animal in the world.Īnd with an estimated lifespan of 70 – 90 years, they are also one of the oldest living marine mammals known to inhibit the sea. The blue whale is one of the world’s most amazing marine animals, and several characteristics make them stand out compared to other whale species.
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