Nova espécie de camaleão pode ser o menor réptil do mundo - Ambientebrasil ambientebrasil.com.br - get the latest breaking news, showbiz & celebrity photos, sport news & rumours, viral videos and top stories from ambientebrasil.com.br Daily Mail and Mail on Sunday newspapers.
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IMAGE: Visualization of cell walls of the plant vascular system, which wind around the cells in filigree band and spiral patterns. view more
Credit: MPI-MP/ René Schneider
Trees are by far the tallest organisms on Earth. Height growth is made possible by a specialized vascular system that conducts water from the roots to the leaves with high efficiency, while simultaneously providing stability. The so-called xylem, also known as wood, is a network of hollow cells with extremely strong cell walls that reinforce the cells against the mechanical conflicts arising from growing tall. These walls wrap around the cells in filigree band and spiral patterns. So far, it is only partly known, how these patterns are created. Scientists from the Max Planck Institute for Molecular Plant Physiology in Golm/Potsdam and from Wageningen University and their colleagues study the formation of such reinforced and patterned cell walls.
New chameleon species may be world’s smallest reptile Jason Bittel
A female
Brookesia nana chameleon in Madagascar. The species is likely the smallest reptile on Earth.
Scientists have discovered a tiny new species of chameleon in a patch of rainforest in northern Madagascar. This so-called nano-chameleon is about the size of a sunflower seed, fits on the tip of a finger, and may be the smallest reptile on Earth.
Officially known as
Brookesia nana, or
B. nana for short, the new species is so tiny it’s thought to survive on a diet of mites and springtails, which it hunts down in leaf litter.
World s Smallest Reptile Is a Chameleon About the Size of a Fingernail
On 2/1/21 at 12:27 PM EST
The chameleon, dubbed
Brookesia nana, was discovered living in the rainforests of the Sorata Massif in northern Madagascar, according to a study published in the journal
Scientific Reports.
The authors of the study found two specimens of the species: one adult male and one female. The male is smaller than the female, measuring just 13.5 millimeters (0.53 inches) long from the snout to the cloaca an orifice seen in many vertebrates into which the intestinal, urinary and genital tracts open.
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This makes it the smallest adult reptile of any sex, according to the authors of the study. In fact, the males are even smaller than another tiny reptile from the same genus (group of species) known as