Common water monitor (Varanus salvator)

Biawak or common water monitor (Varanus salvator) is a species of animal in Varanidae, large lizards that live near freshwater and mangrove forests, semi-aquatic, good swimmers with paddle tails, strong jaws, sharp hoofed legs, adapt and thrive in local areas farms and cities with canal systems for elevations below 1000 meters.

V. salvator has a length of 1.5-2 meters and weighs up to 20 kg as the second heaviest lizard in the world after the Komodo dragon. A muscular body with a long, strong and paddle tail. The scales on the keel and on the head are larger than those on the back.

Commonly brown or blackish in color with a yellow spot on the underside and tends to disappear gradually with age. The band extends from each eye and back over each edge of the back, upper tail and upper legs.

Very long neck, elongated muzzle, powerful jaw, serrated teeth and fingertips ending with sharp claws that can be used to climb trees. Long tail, shaped like a paddle, black with yellow rings and pointed tip.

Common water monitors have a semi-aquatic lifestyle inhabiting various natural habitats in primary forests and mangrove swamps. Adapt and develop in vegetated rivers in agricultural areas and cities with canal systems.

Biawak defends itself using its tail, claws and jaws. Carnivores that eat a wide variety of prey including fish, frogs, rodents, birds, crabs, snakes, turtles, young crocodiles and crocodile eggs. They eat by tearing open chunks of meat with sharp teeth while holding them with their forelegs.

Kingdom: Animalia
Phylum: Chordata
Subphylum: Vertebrata
Class: Reptilia
Order: Squamata
Suborder: Sauria
Family: Varanidae
Genus: Varanus
Species: Varanus salvator
Subspecies: Varanus salvator ssp. andamanensis, Varanus salvator ssp. bivittatus, Varanus salvator ssp. macromaculatus, Varanus salvator ssp. salvator, Varanus salvator ssp. ziegleri

Korean mulberry (Morus indica)

Murbei or Korean mulberry ( Morus indica ) is a species of plant in Moraceae, shrub or small tree, up to 10 meters tall, slow growing, cylindrical stem, light brown with white nodules, M. indica has heart-shaped or oval-shaped leaves and sometimes three-lobed, 4-12.5 cm long, 2.5-7.5 cm wide, pointed tip, serrated margin, green and has a stalk. Monoecious inflorescences with male and female grow on the same tree, though often on different branches. Male flowers have a size of 9-11.5 mm and are covered with fine hairs. The female flowers are subglubose or only round in shape, measuring 6-9.5 mm. Stigma is 3.5 mm long with short, thick hair. The female flowers form compound fruit and are fleshy, green and white-haired to white, red and black when ripe. Korean mulberry is used in regulating blood glucose levels in diabetic patients. Kingdom: Plantae Phylum: Tracheophyta Subphylum: Angiospermae Class: Magnoliopsida Order: Rosales Family: Moraceae Genus: Morus Species: Morus indica

Swietenia mahagoni and Swietenia macrophylla, the differences

SPECIES HEAD TO HEAD - To date, mahogany ( Swietenia Jacq.) is recorded as having four species: West Indian mahogany or small-leaved mahogany ( Swietenia mahagoni (L.) Jacq.), big-leaf mahogany ( Swietenia macrophylla King), Honduran mahogany ( Swietenia humilis Zucc.) and Swietenia × aubrevilleana Stehlé & Cusin. The debate over the number of taxa in the genus is still not resolved. Some researchers believe that there are only two species: S. mahagoni and S. macrophylla . I agree with that opinion and the two species can only be differentiated by the size of the leaves. All species in this genus have similar morphology except for leaf size. The following is the key to identifying these two species. S. mahagoni has a stalk length of around 37 cm with 5-6 pairs of strands. The strands are about 10 cm long and about 3.5 cm wide. S. macrophylla has a stalk length of up to 45 cm with 4-5 pairs of strands. The strands are up to 31 cm long and up to 8 cm wide. By Aryo Bando...

Aquatic bacteria Comamonas testosteroni eats plastic waste into carbon for microbial growth

NEWS - Researchers report an enzyme that breaks down polyethylene terephthalate (PET) in a somewhat unlikely place: Comamonas testosteroni , a microbe that lives in sewage sludge. The enzyme could be used by wastewater treatment plants to break down microplastic particles and recycle plastic waste. Plastic pollution is everywhere, and it mostly consists of PET. The polymer is used to make bottles, containers and even clothing. PET beads are an increasingly common microplastic found in places ranging from remote oceans to inside our bodies. But the particles are so small that they can escape water treatment processes and end up in wastewater that re-enters the environment. On the other hand, wastewater also contains microorganisms that like to eat these plastic particles, including C. testosteroni, so named because it degrades sterols like testosterone. “It’s important to note that PET plastic represents 12% of global plastic use. And it accounts for up to 50% of microplastics in wastew...

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