Zebra dove (Geopelia striata)

Perkutut or zebra dove (Geopelia striata) is a species of animal in the Columbidae, a monomorphic, grain-eating bird, although may also eat insects and small invertebrates, blue iris, black and white stripes are cut off by light brown on the thorax and abdomen.

G. striata has a length of 21 cm, slender and a long tail. Gray head and neck, smooth striped sides and brown back with black edges. The tail is blackish with a white tip. Bluish gray iris and beak, dark legs.

Zebra doves live in pairs or small groups. Prefers open fields for eating at ground level in forests, gardens, parks, farmlands, pastures, yards and sometimes gather to drink at water sources.

The nests are flat and thin, built using branches in the canopy of large trees and sometimes not far from settlements, although they will quickly fly away if humans arrive. Eggs are white, 2 items and breed in January-September.

Perkutut are unique in their beautiful songs and have been the favorite birds of kings in Java since the Majapahit Kingdom. Voices generally consist of front, middle and end sounds. Waveform analysis shows males pass on the front sound and number of beats to their offspring, while females pass on the end sound and give a touch of rhythm.

G. striata that is farmed is usually fed only grains including white millet, red millet, millet, small grain and black sticky rice. Sometimes also canary seeds, godem seeds, mustard seeds and cuttlefish bones for mineral needs.

Kingdom: Animalia
Phylum: Chordata
Subphylum: Vertebrata
Class: Aves
Order: Columbiformes
Family: Columbidae
Genus: Geopelia
Species: Geopelia striata

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 ...

Bellyache bush (Jatropha gossypiifolia)

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