Cuttlefish with 2 tentacles and 8 arms

Tentacles can refer to the elongated flexible organs that are present in some animals, especially invertebrates, and sometimes to the hairs of the leaves of some insectivorous plants. Cuttlefish are marine animals of the order Sepiida belonging to the Cephalopoda class (which also includes Squid, Octopuses An invertebrate is an Animal lacking a Vertebral column. The group includes 98% of all animal Species — all animals except those in the Chordate Carnivorous plants (sometimes called insectivorous plants) are Plants that derive some or most of their Nutrients (but not Energy) from trapping Usually, they are used for feeding, feeling and grasping. Anatomically, they work like other muscular hydrostats. A muscular hydrostat is a biological structure found in Animals It is used to manipulate items (including food or to move its host about and consists mainly of Muscles

Tentacles in marine animals

The phylum mollusca includes many species with muscular hydrostats in the form of tentacles and arms (octopuses do not have tentacles: they have arms). Molluscs are animals belonging to the phylum Mollusca. There are around 250000 extant Species within the phylum with an estimated 70000 A muscular hydrostat is a biological structure found in Animals It is used to manipulate items (including food or to move its host about and consists mainly of Muscles The Tentacles are longer than arms and usually have suckers at their tips only. Squid and cuttlefish have eight arms like octopuses, and also two tentacles, which is one good way to distinguish squid from octopuses. Squid are marine Cephalopods of the order Teuthida, which comprises around 300 species Cuttlefish are marine animals of the order Sepiida belonging to the Cephalopoda class (which also includes Squid, Octopuses

The tentacles of the Giant Squid and Colossal Squid are particularly formidable, having powerful suckers and deadly teeth at the ends of the tentacle. The giant squid ( Genus: Architeuthis) is a deep-ocean dwelling Squid in the family Architeuthidae, represented by The Colossal Squid ( Mesonychoteuthis hamiltoni, from Greek mesos (middle onychos (claw and teuthis (squid sometimes called The teeth of the Giant Squid are small, "bottle-cap" shaped circular saws, while the tentacles of the Colossal Squid wield two long rows of thick, sharp, finger-length screws of protruding bone.

Cnidarians, which include among others the jellyfishes, are another phylum with many tentaculated specimens. Cnidaria (naɪˈdɛəriə is a phylum containing some 9000 Species of Animals found exclusively in aquatic mostly marine, environments Jellyfish are free-swimming members of the phylum Cnidaria. They have several different basic morphologies that represent several different cnidarian classes including the Cnidarians often have huge numbers of cnidocytes on their tentacles. A cnidocyte, cnidoblast or nematocyte, is a type of Venomous cell unique to the Phylum Cnidaria ( Corals Cnidocytes are cells containing a coiled thread-like structure called nematocyst, which can be fired at potential prey.

Many species of the jellyfishlike ctenophores have two tentacles, while some have none. The phylum Ctenophora (tɨˈnɒfərə commonly known as comb jellies, is a phylum that includes the Sea gooseberry ( Pleurobrachia pileus) and Their tentacles have adhesive structures called colloblasts or lasso cells. Colloblasts are a cell type of ctenophores. They are widespread in the Tentacles of these animals and are used to capture Prey. These cells burst open when prey comes in contact with the tentacle; sticky threads released from each of the colloblasts will then capture the food.

Bryozoa (Moss animals) are tiny creatures with a ring of tentacles surrounding the mouth. Bryozoans are tiny colonial Animals that generally build stony Skeletons of Calcium carbonate, superficially similar to Coral (although some

Tentacles in amphibians

Some wormlike amphibians have tentacles. Prehistoric amphibian Amphibians (class Amphibia such as Frogs Toads Salamanders Newts Gymnophiona, Sirens and The caecilians have two tentacles at their heads, which are probably used for the olfactory sense. Apoda redirects here For the Moth Genus, see Apoda (moth. For the bishop of Carthage see Caecilianus. Olfaction (also known as olfactics or smell) refers to the Sense of smell.

Tentacles in mammals

The star-nosed mole, Condylura cristata, possesses nasal tentacles which are mobile and extremely sensitive, helping the animal to find its way about the burrow and detect prey. The Star-nosed Mole ( Condylura cristata) is a small North American mole found in eastern Canada and the north-eastern United States

Tentacles in plants

Leaf and tentacle movement on Drosera capensis

In carnivorous plants, tentacles refer to the stalked glands of the upper surface of the leaves. Drosera capensis, commonly known as the Cape sundew, is a small rosette -forming species of perennial Sundew native to the Cape Carnivorous plants (sometimes called insectivorous plants) are Plants that derive some or most of their Nutrients (but not Energy) from trapping In Botany, a leaf is an above-ground Plant organ specialized for Photosynthesis. On a sundew plant, they are hairlike projections with a drop of nectar-like glue which attract insects. The Sundews ( Drosera) comprise one of the largest genera of Carnivorous plants with over 170 Species. When an insect is captured, the tentacles bend inward and the leaf rolls together as shown in the picture. The tentacles then secrete digestive enzymes to dissolve and engulf the insect. Enzymes are Biomolecules that catalyze ( ie increase the rates of Chemical reactions Almost all enzymes are Proteins

Tentacles in cultural context

The great differences between humans and the tentacle-bearing mollusca have led to tentacles being associated with inhumanity and disgust in legend and fiction. For examples, see:

• Tentacle rape
• Purple Tentacle (see Day of the Tentacle)
• Cthulhu
• The Kraken
• Cecaelia

In games

• Half-Life
• Die by the Sword
• Ing

External links

• Difference between arms and tentacles