Cavendish banana (Musa acuminata)

Pisang or cavendish banana (Musa acuminata) is a plant species in the Musaceae, a banana with small or seedless seeds, a evergreen perennial plant, the stems are composed of a layer of leaf sheaths that are tightly closed and emerge from completely buried tubers.

M. acuminata is formed as a pseudostem with a pile of leaf sheaths and is watery, soft, upright, up to 3 meters high, white or green to black in color and dries to brown, forming dense colonies by producing shoots around it.

The leaves are elongated, 120 cm long, 45 cm wide, watertight, a midrib in the middle and light green, the upper surface is dark green, the lower surface is whitish green with a flour coating.

Inflorescences grow horizontally or obliquely from the ends of the stems. Individual flowers are white to yellowish in color and are negative geotropic. The female flowers are located near the base and develop into fruit, the male flowers are located at the very top and are bud-shaped between the coarse bracts.

The fruits grow in bunches of up to 20 groups and each group has up to 20 fruits. Each fruit is up to 23 cm long, up to 4 cm in diameter and weighs up to 200 grams. Each fruit contains up to 62 small seeds or no seeds at all depending on the cultivar via natural mutations resulting from vegetative propagation.

Kingdom: Plantae
Phylum: Tracheophyta
Subphylum: Angiospermae
Class: Liliopsida
Order: Zingiberales
Family: Musaceae
Genus: Musa
Species: Musa acuminata
Subspecies: Musa acuminata ssp. acuminata, Musa acuminata ssp. errans, Musa acuminata ssp. flava, Musa acuminata ssp. halabanensis, Musa acuminata ssp. malaccensis, Musa acuminata ssp. microcarpa, Musa acuminata ssp. siamea, Musa acuminata var. sumatrana, Musa acuminata var. zebrina

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 ...

Tanglehead (Heteropogon contortus)

Tanglehead ( Heteropogon contortus ) is a species of Poaceae, an erect grass, up to 65 cm tall, with leaves up to 13 cm long and 0.5 cm wide. The inflorescence is at the top and hairy. The tip is black. This plant forms dense colonies in forests, agricultural lands, roadsides, and abandoned areas. TAXON : Kingdom: Plantae Phylum: Tracheophyta Subphylum: Angiospermae Class: Liliopsida Order: Poales Family: Poaceae Subfamily: Panicoideae Tribe: Andropogoneae Subtribe: Anthistiriinae Genus: Heteropogon Pers. in Syn. Pl. 2: 533 (1807) Species: Heteropogon contortus (L.) P.Beauv. in J.J.Roemer & J.A.Schultes, Syst. Veg., ed. 15[bis]. 2: 836 (1817) HOMOTYPIC SYNONYMS : Andropogon contortus L. in Sp. Pl.: 1045 (1753) Heteropogon contortus var. hirtus Hack. in C.F.P.von Martius & auct. suc. (eds.), Fl. Bras. 2(3): 267 (1883) Heteropogon hirtus Pers. (1807) Holcus contortus (L.) Stuck. in Anales Mus. Nac. Buenos Aires, ser. 3, 4: 48 (1904) Sorghum contortum (L.) Kuntze in Revis. Gen. ...

Cockspur coral tree (Erythrina crista-galli)

Velvet coral tree or cockspur coral tree ( Erythrina crista-galli ) is a species of plant in the Fabaceae family. It is a small tree, 5-8 meters tall, with a trunk circumference of about 50 cm, irregular branches, light wood, and fissured, soft, and light brown bark. The taproot is white. The leaves are ovate, with three strands, dark green and glossy on the upper surface, and pale green on the underside. The central lobe is up to 17 cm long and up to 11 cm wide. The left and right lobes are up to 15 cm long and up to 10 cm wide. The flowers are red, arranged in racemes, at the apex, pentameric, complete, and bilaterally symmetrical. The flowers are up to 6 cm long and 4 cm wide. The pods are long, containing about 8 seeds, green when young and turning brown as they mature. The seeds are ovate, flat, and brown. It grows well in lowlands up to an elevation of 1,500 meters, with an annual rainfall of 800-1,500 mm/year, and a temperature of 20-32°C. It thrives in well-drained soils, but...

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