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Napsal: Laman v Knihy, Recenze, Různé 28. ledna 2022 19:55

The penis on a right whale can be up to 2.7 m (8.9 ft) – the testes, at up to 2 m (6.6 ft) in length, 78 cm (2.56 ft) in diameter, and weighing up to 525 kg (1157 lbs), are also by far the largest of any animal on Earth.[15] The blue whale may be the largest animal on the planet, yet the testicles of the right whale are ten times the size of those of the blue whale. They also exceed predictions in terms of relative size, as well – they are six times larger than would be expected on the basis of body mass. Together, the testicles make up nearly 1% of the right whale's total body weight. This strongly suggests sperm competition is important in mating, which correlates to the fact that right whales are highly promiscuous.[14][50]

Černá sedmička v rohu

Napsal: Laman v Lezení, Ze života 3. ledna 2022 22:14

Prvně jsem byl lézt v březnu 2020. Pravidelně chodím od června 2021. Teď se mi podařilo zlepšit si své maximum na 7 UIAA, když jsem vylezl svou Nemesis z posledních měsíců, černou sedmičku v rohu.

Zima

Napsal: Laman v Různé 18. prosince 2021 22:46

The Arctic fox lives in some of the most frigid extremes on the planet, but they do not start to shiver until the temperature drops to −70 °C.
...
One way that Arctic foxes regulate their body temperature is by utilizing a countercurrent heat exchange in the blood of their legs.[14] Arctic foxes can constantly keep their feet above the tissue freezing point (−1 °C) when standing on cold substrates without losing mobility or feeling pain. They do this by increasing vasodilation and blood flow to a capillary rete in the pad surface, which is in direct contact with the snow rather than the entire foot. They selectively vasoconstrict blood vessels in the center of the foot pad, which conserves energy and minimizes heat loss.[16][31] Arctic foxes maintain the temperature in their paws independently from the core temperature. If the core temperature drops, the pad of the foot will remain constantly above the tissue freezing point.[31]
(https://en.wikipedia.org/wiki/Arctic_fox)

Otázky

Napsal: Laman v Ze života 21. září 2021 20:48

1.

Život a jak ho žít

Napsal: Laman v Knihy, Recenze, Úvahy 2. října 2020 22:14

Minimalizovat lítost.

Dělejte, co chcete. Buďte s tím spokojení. Stůjte si za tím.

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