Yuyu (Parathelphusa convexa)

Yuyu (Parathelphusa convexa) is an animal species in the Gecarcinucidae, freshwater crab and is small, a pair of scissors, the dorsal surface has a curved pattern similar to the letter V or U, is white or brown or blackish, lives in rice fields, ditches and soil on generally.

P. convexa has a carapace with a width of 30 mm, a length of 40 mm, a thick body with a width of half the carapace and bulging at the back. The anterolateral edge has a tooth on the outer side of the eye recess and two teeth as epibranchial spines which are pointed and pointed forward and inward.

The forelimb has serrations that extend from side to side and end in the center of the base of the first epibranchial spine. Slender legs, a small spine pointed at the end of each joint, near the joint with carpus joints, curved and serrated ends.

Back brown to dark. The curved pattern on the back is similar to the letter V or U with the upper side widening, connecting with the curve of the letter H at the bottom and resembling a widening hourglass pattern. The ventral side is whitish or yellowish in color with an inverted T-shaped abdomen and is segmented.

Yuyu are often found in rice fields, ditches and irrigation canals and slow-flowing rivers. Usually preyed on by cranes and other water birds that often visit the fields. Sometimes it is consumed locally or crushed then fermented, dried in the sun and finally squeezed for oil.

Kingdom: Animalia
Phylum: Arthropoda
Subphylum: Crustacea
Superclass: Multicrustacea
Class: Malacostraca
Subclass: Eumalacostraca
Superorder: Eucarida
Order: Decapoda
Suborder: Pleocyemata
Infraorder: Brachyura
Zoosection: Eubrachyura
Zoosubsection: Heterotremata
Superfamily: Gecarcinucoidea
Family: Gecarcinucidae
Genus: Parathelphusa
Species: Parathelphusa convexa

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 ...

Purwaceng (Pimpinella pruatjan)

Purwaceng or purwoceng or antanan gunung or Viagra of Java ( Pimpinella pruatjan or Pimpinella priatjan ) are small termas growing horizontally in Apiaceae, growing in villages on Dieng Plateau, Central Java Province, Indonesia, at 1,500 to 2,000 meters above sea level, the roots have medicinal properties for aphrodisiacs and are usually processed in powder form for a mixture of coffee or milk. P. pruatjan grows flat on the ground but does not propagate, small leaves are reddish green for 1-3 cm in diameter. This plant is only found in Java and grows in high mountain areas. A low population where industrial demand is very high results in increasingly scarce. Another place that is likely to become a purwaceng habitat is the Iyang Mountains and the Tengger Mountains in East Java Province. Efforts to multiply and cultivate have a big problem where these plants have difficulty producing seeds. In vitro propagation research through tissue cultivation has been carried out to overcome ...

Javanese grasshopper (Valanga nigricornis)

Wooden grasshopper or Javanese grasshopper ( Valanga nigricornis ) is an animal species of Acrididae, grasshoppers that have at least 18 subspecies, insects with very wide diversity in color and size, sexual dimorphism in which females are larger in size and paler in color. V. nigricornis in males has a length of 45-55 millimeters and females 15-75 mm. The head is square and green or yellow or brown or black in color. A pair of antennas has a black color. The eyes are large and gray or white or brownish. The hind legs are very large and have a green or yellow or brown or black color, plain or brindle. The limbs have two rows of large and long spines with black tips facing backward. The wings have a length exceeding the belly, a rough surface and are brown or green or yellow or black in color with pulse lines forming spaces filled with black color. The hind wings are rose red which will be visible when flying. Nymphs are pale green or yellow or brown or blackish in color. Javanese gr...

Dlium