The Southern Lechwe (Kobus leche) is an ungulate (hoofed) mammal in the Bovidae family of cattle and antelopes. It is also known as the Red Lechwe.
The Southern Lechwe is golden brown with a white belly. The male is darker than the female. The male has long, spiral horns. The female does not have horns. Its hind legs (back legs) are longer than those of other antelopes – perhaps to be able to walk in the marshy soil. Its legs have a water-repellent substance on its legs, which enables it to run in knee-high water.
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The True Glass Snail (Aegopinella nitidula) is a small, air-breathing, land pulmonate gastropod mollusc in the Gastrodontidae family of glass snails. It is an invertebrate, because it does not have a backbone. Its shell is its exo-skeleton (outside skeleton).
The True Glass Snail has a spiral, heliciform shell that is flattened and disc-shaped with a low spire, like it is a bit squashed. The opening lacks a thick margin like other land snails have. Instead, its shell is thin and light. The shell is almost transparent, as if made of glass, but it usually has light-brown, amber, or dark-brown markings.
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The Cambodia Land Snail (Amphidromus atricallosus classiarius) is a tropical, air-breathing invertebrate gastropod mollusc in the Camaenidae family of arboreal (tree-living) pulmonate land snails. An invertebrate does not have a backbone and gastropod means stomach-footed.
The Cambodia Land Snail can be varied in colour, often quite colourful but a few species can be dark, with a smooth shell that can be thin and fragile or heavy and solid. Different species have different colours, and can have varied number of whorls, and the direction of the way its shell spirals. It can be dextral shell-coiling (right-handed) or sinistral shell-coiling (left-coiling). The photographed snail is sinistral with a heavy shell. It has 6-8 pale-coloured whorls. It has a large aperture. Its ‘foot’ (soft body) is brown.
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The Stavropolitan Snail (Helix stavropolitana) is a spiral-shaped invertebrate gastropod mollusc. An invertebrate does not have a backbone and gastropod means stomach-footed. It is also called the City Snail.
The Stavropolitan Snail has a thick, spherical shell with a distinct apex. The shell has a white background with dark-brown to reddish-brown, irregular, vertical bands.
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The Georgian Helix Snail (Helix atrolabiataor or Caucasotachea atrolabiata) is a spiral-shaped invertebrate gastropod (stomach-footed) mollusc in the Helicidae family of. land snails. An invertebrate does not have a backbone.
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Antelope horns are hard and hollow, growing from their skull, at the front of their head. They are made of keratin, which is the same material as human fingernails.
Antelope horns are not shed – they are permanent.
Different antelope species have horns of different sizes and shapes. The 91 species of antelopes (mostly from Africa) include the blackbuck, dik-dik, duiker, eland, gazelle, gerenuk, hartebeest, impala, kudu, oryx, reedbuck, steenbok, and wildebeest.
The following is an example of the different types of antelope horns:
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What is a spiral?
A spiral is a curve that winds in a continuous and gradual widening around a central point.
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The Chambered Nautilus (Nautilus pompilius) also called the Pearly Nautilus. It is a marine mollusc (mollusk) and a cephalopod (related to the squid and the octopus).
The Chambered Nautilus is similar to a squid, but with an external shell. It has about 90 tentacles, called cirri. The tentacles do not have suckers (like the octopus). The eye of the Chambered Nautilus has no lens.
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