What animal stays pregnant the longest?

Elephants Elephants have the longest pregnancy period of any living mammal. If you – or someone you know – has experienced a pregnancy that seemed to go on forever, spare a thought for the elephant. It's the animal with one of the longest gestation periods of all living mammals: nearly two years.

bbcearth.com - Elephant gestation period longer than any living mammal - BBC Earth

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An Elephant Never Forgets

Elephants are highly intelligent mammals – they’re born this way, which takes time. They also have an impressive brain to show for it: it’s the largest of any land animal, with a structure similar to that of a human brain. However, it’s three times as large as ours, with three times as many neurons – 250 billion, in fact.3,4 They say, 'an elephant never forgets', and there’s actually some truth in that saying. Their temporal lobe region (the area responsible for memory) is exceptionally developed, with a greater number of folds, meaning it can store more information. It allows for retaining details that are vital for elephant survival, such as where to go to find food and water – and how to get there. The matriarch of a herd can lead family members to waterholes by calling up complex mental maps that cover hundreds of kilometres.5 Elephants rank alongside dolphins and chimpanzees in terms of levels of intelligence. They’re adept at problem-solving, from piling up blocks to reach food, to using branches and rocks as tools. Their trunks allow them to be dextrous beasts, using them to move and manipulate objects in much the same way that we would use our hands and arms.6 They’re one of very few species that understand what pointing means – for example, many dogs understand it, but chimpanzees do not. Elephants can also recognise themselves in a mirror – another rarity in the animal kingdom, as only the great apes, crows and bottlenose dolphins display the same levels of self-awareness. They demonstrate compassion, too; they help injured members of the herd and show grief when a family member dies. These gentle giants have even known to bury their dead, or cover them with leaves. And if that wasn’t impressive enough for you, they’re also capable of imitating the sounds of other elephants and even some human words.7

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Did they ever find Colossus?

Ancient Colossus Unearthed in Portugal May Be Largest Dinosaur Ever Found in Europe. Paleontologists in Portugal have unearthed the fossilized skeleton of what could be the largest dinosaur ever found in Europe.

sciencealert.com - Ancient Colossus Unearthed in Portugal May Be Largest Dinosaur ...

Paleontologists in Portugal have unearthed the fossilized skeleton of what could be the largest dinosaur ever found in Europe. The remains are thought to be those of a sauropod, a herbivorous dinosaur 12 meters (39 feet) tall and 25 meters long that roamed the Earth around 150 million years ago. "It's one of the biggest specimens discovered in Europe, perhaps in the world," paleontologist Elisabete Malafaia, from the Faculty of Sciences at Lisbon University, told AFP on Monday. The bones were uncovered by Portuguese and Spanish scientists in the garden of a house near Pombal in central Portugal at the beginning of August. Among the bones collected, they found the remains of a rib about three meters long, Malafaia said. Fossil fragments were first noticed at the site in 2017, when the owner was digging up his garden to make way for an extension. He contacted paleontologists, who unearthed part of the dinosaur skeleton earlier this month and have been examining it ever since. Sauropods have characteristically long necks and tails and are among the largest animals to have ever lived. The fossils discovered at the Monte Agudo site in Pombal are thought to be those of a brachiosaurid who lived during the Upper Jurassic period. The fact that the vertebrae and ribs were found at the same location and in the position they would have been in the dinosaur's anatomy is "relatively rare", Malafaia said. The team may conduct more digs in the coming months at the site and in the surrounding area.

© Agence France-Presse

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