Whale of an appetite Then there are animals that eat massive quantities on a regular basis. The largest animal on earth, the blue whale, puts away four tons of krill a day. That's sounds like a lot, but this animal has a 200-ton body to feed, so that's not a high percentage of its body weight.
So, what are some animals that eat a lot? Some big eaters in the animal kingdom include blue whales, Burmese pythons, big cats, hippos, rhinoceroses, bears, giraffes, giant pandas, and elephants. Extinct animals like the mammoth and giant apes were also known for having big appetites.
Crocodiles. Crocodile attacks on people are common in places where crocodiles are native. The saltwater and Nile crocodiles are responsible for more attacks and more deaths than any other wild predator that attacks humans for food.
According to the Guinness Book of World Records, the Polyphemus moth eats 86,000 times its body weight in the 56 days that it lives as a moth. To eat the same amount, we would have to eat about 125 pounds of lettuce every day. As caterpillars, the Polyphemus moth is bright green with a rust-colored head.
Predators at the top of the food chain tend to be the biggest animals in it. These are sometimes called apex (meaning 'at the top') predators. Usually nothing else eats them.
Humans are said to be at the top of the food chain because they eat plants and animals of all kinds but are not eaten consistently by any animals. The human food chain starts with plants. Plants eaten by humans are called fruits and vegetables, and when they eat these plants, humans are primary consumers.
Human NTL there is 3.82, equivalent to a FTL of 4.50. Thus, humans are apex predators in those systems.
Giant Panda
Panda bears love to play, eat, and sleep. They spend an average of 12 hours a day asleep to accommodate for their very low energy expenditure but very high intake of food, at least 44 pounds a day mostly of bamboo which contains little nutrients. (Sounds like holiday mode to us!)
The Blue Whale (Balaenoptera musculus)
30 meters long and weighing some 170 tons, it eats up to 3,6 tons of krill (a type of plankton) a day. That's equivalent to a daily intake of 1.5 million Calories – or about 6000 Snickers bars.
Mosquitos are by far the deadliest creature in the world when it comes to annual human deaths, causing around one million deaths per year, compared to 100,000 deaths from snakes and 250 from lions.
Lions are extremely accomplished predators and adept hunters. For them, humans count as prey.
The kangaroo rat's kidneys are so efficient that it never needs to drink water. It gets all of its liquid from the plants, roots, and seeds it eats. Nonetheless, it is sufficient to keep the kangaroo rat alive.
The quokka, a small marsupial native to Australia, is one such example of a species vulnerable to extinction in the country's harsh surroundings. Known as the “happiest animal in the world” due to its cute and friendly appearance, these creatures are now only found in a few isolated forests and small islands.
Humans aren't the only animals that get “hangry” when deprived of a meal. A new study published in iScience Thursday found that monarch butterfly caterpillars (Danaus plexippus) will aggressively push each other out of the way when food gets scarce.
koala. Koalas are known for their laziness and sleeping abilities, spending only two to six hours awake every day. Their diet is to blame for their sleepiness though.
Bottlenose Dolphins
For years, dolphins have been heralded as the smartest animals on Earth, second only to humans—though some would even contest that ranking. Aside from humans, dolphins have the greatest brain-to-body ratio among animal species, including primates.
Weakest Mammal: Sloths
A lazy sleeping sloth, Bradypus variegatus, lying in a tree. It can take a sloth 30 days to digest a leaf. Sloths have about 30 percent less muscle mass than many mammals of similar size.
How Long Can Snails Sleep? Certain land snails can sleep for up to three years in hibernation or estivation. Yes, it's true!
You will be surprised to know that crocodiles, as one of the oldest reptiles of the planet can go for a few months without food, and in extreme cases, they can go up to three years without food. They save energy by moving slow and at times by being motionless too.
Kangaroo rats, according to scientists, are the only animals that can exist without water. According to the findings, they do not have any water in their bodies for any of their digestive functions. Kangaroo rats can survive in deserts without ever drinking.
Humans were eaten by giant hyenas, cave bears, cave lions, eagles, snakes, other primates, wolves, saber-toothed cats, false saber-toothed cats, and maybe even—bless their hearts—giant, predatory kangaroos.
Many species, including predators like pumas and bobcats, view humans as an apex predator and lay low when they sense we're around.
Based on the fossil evidence dating back 7 million years and studies in living primate species, Fuentes and others suggest that primates, including early humans, were the prey of many predators, including hyenas, cats and crocodiles.