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

Black potato (Coleus rotundifolius)

Black potato ( Coleus rotundifolius ) is a species of plant in Lamiaceae, herbaceous, fibrous roots and tubers, erect and slightly creeping stems, quadrangular, thick, and slightly odorous. Single leaves, thick, membranous, opposite and alternate. Leaves are oval, dark green and shiny on the upper side, bright green on the lower side. Up to 5 cm long, up to 4 cm wide, slightly hairy and pinnate leaf veins. Leaf stalks up to 4 cm long. Small, purple flowers. Star-shaped petals, lip-shaped crown, dark to light purple with a slightly curved tube shape. Flowering from February-August. Small tubers, brown and white flesh and tuber length 2-4 cm. Kingdom: Plantae Phylum: Tracheophyta Subphylum: Angiospermae Class: Magnoliopsida Order: Lamiales Family: Lamiaceae Subfamily: Nepetoideae Tribe: Ocimeae Subtribe: Plectranthinae Genus: Coleus Species: Coleus rotundifolius

Humpback whales (Megaptera novaeangliae) manufacture bubble-nets as tools to increase prey intake

NEWS - Humpback whales ( Megaptera novaeangliae ) create bubble net tools while foraging, consisting of internal tangential rings, and actively control the number of rings, their size, depth and horizontal spacing between the surrounding bubbles. These structural elements of the net increase prey intake sevenfold. Researchers have known that humpback whales create “bubble nets” for hunting, but the new report shows that the animals also manipulate them in a variety of ways to maximize catches. The behavior places humpbacks among the rare animals that make and use their own tools. “Many animals use tools to help them find food, but very few actually make or modify these tools themselves,” said Lars Bejder, director of the Marine Mammal Research Program (MMRP), University of Hawaii at Manoa. “Humpback whales in southeast Alaska create elaborate bubble nets to catch krill. They skillfully blow bubbles in patterns that form a web with internal rings. They actively control details such ...

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