Bird wiki:
>For other uses, see Bird (disambiguation). Many - see section below. Birds are bipedal, warm-blooded, egg-laying vertebrates characterized primarily by feathers, forelimbs modified as wings, and hollow bones. Birds range in size from the tiny hummingbirds to the huge Ostrich and Emu. Depending on taxonomic viewpoint, there are about 8,800â10,200 living bird species (plus about 120â130 that have become extinct in the span of human history) in the world, making them the most diverse class of terrestrial vertebrates.
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Grass wiki:
>This article is about plants; for other uses of the term, see Grass (disambiguation) Grass generally describes a monocotyledonous green plant characterized by slender leaves, called blades, which usually grow arching upwards from the ground. Plants that are botanically regarded as "true" grasses fall into the flowering plant family, Poaceae. However, there are other plants outside this plant family that have similar appearance, and are commonly referred to as grasses, or have "grass" as part of their name. These include:China grass, more commonly known as Ramie (Boehmeria nivea), a nettle grown for bast fibres, in the Family UrticaceaeDitch grass or Wigeon grass (Ruppia maritima) in the Family RuppiaceaeFish grass (Cabomba caroliniana), a freshwater aquaticGoosegrass (Galium aparine)Mondo grass or Lily turf (Ophiopogon japonicus), an Asian ornamental ground coverNutgrass, a common lawn pest (Cyperus rotundus) in the Family CyperaceaePepper grasses (Lipidium spp.) in the family BrassicaceaeSawgrass, abundant in sub-tropical marshlands (Cladium spp.) in the Family CyperaceaeScurvy-grass (Cochlearia species) in the Family BrassicaceaeScurvy-grass Sorrel (Oxalis enneaphylla) in the Family OxalidaceaeSeagrasses, including Eel grass (Zostera spp.)"Sleeping grass" (Mimosa pudica) a legume (Family Fabaceae) and lawn weedXyridaceae, known as the yellow-eyed grass family
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