Red percher (Neurothemis ramburii)

Red percher (Neurothemis ramburii) is a species of animal in the Libellulidae, dragonflies with dark red, brown and black colors, live on stagnant water, flow calm or swift and open, are more stationary and perch on a stick.

N. ramburii has a brownish red head. The back has an upper surface with curves, is brownish red and has hair. A pair of large, dark red or blackish eyes. The muzzle is large and bright red.

The tail is cylindrical, segmented, red, a linear line at the top is red, two segments from the base are black, the tip is whitish, the second and third segments from the ends have a black plot. The legs are dark or brownish

Two pairs of wings are red, black and transparent. Multiple large linear veins with multiple small veins running across to create square spaces filled with black. The ends of the wings are transparent.

Kingdom: Animalia
Phylum: Arthropoda
Subphylum: Hexapoda
Class: Insecta
Subclass: Pterygota
Order: Odonata
Suborder: Anisoptera
Family: Libellulidae
Genus: Neurothemis
Species: Neurothemis ramburii
Subspecies: Neurothemis ramburii ssp. martini, Neurothemis ramburii ssp. ramburii

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 ...

False nettle (Boehmeria cylindrica)

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Devil's backbone (Euphorbia tithymaloides)

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