Matches in DBpedia 2015-10 for { <http://dbpedia.org/resource/Frog> ?p ?o }
- Frog abstract "Frogs are a diverse and largely carnivorous group of short-bodied, tailless amphibians composing the order Anura (Ancient Greek an-, without + oura, tail). The oldest fossil "proto-frog" appeared in the early Triassic of Madagascar, but molecular clock dating suggests their origins may extend further back to the Permian, 265 million years ago. Frogs are widely distributed, ranging from the tropics to subarctic regions, but the greatest concentration of species diversity is found in tropical rainforests. There are approximately 4,800 recorded species, accounting for over 85% of extant amphibian species. They are also one of the five most diverse vertebrate orders.The body plan of an adult frog is generally characterized by a stout body, protruding eyes, cleft tongue, limbs folded underneath, and the absence of a tail in adults. Besides living in fresh water and on dry land, the adults of some species are adapted for living underground or in trees. The skin of the frog is glandular, with secretions ranging from distasteful to toxic. Warty species of frog tend to be called toads but the distinction between frogs and toads is based on informal naming conventions concentrating on the warts rather than taxonomy or evolutionary history; some toads are more closely related to frogs than to other toads. Frogs' skins vary in colour from well-camouflaged dappled brown, grey and green to vivid patterns of bright red or yellow and black to advertise toxicity and warn off predators.Frogs typically lay their eggs in water. The eggs hatch into aquatic larvae called tadpoles that have tails and internal gills. They have highly specialized rasping mouth parts suitable for herbivorous, omnivorous or planktivorous diets. The life cycle is completed when they metamorphose into adults. A few species deposit eggs on land or bypass the tadpole stage. Adult frogs generally have a carnivorous diet consisting of small invertebrates, but omnivorous species exist and a few feed on fruit. Frogs are extremely efficient at converting what they eat into body mass. They are an important food source for predators and part of the food web dynamics of many of the world's ecosystems. The skin is semi-permeable, making them susceptible to dehydration, so they either live in moist places or have special adaptations to deal with dry habitats. Frogs produce a wide range of vocalizations, particularly in their breeding season, and exhibit many different kinds of complex behaviours to attract mates, to fend off predators and to generally survive.Frog populations have declined significantly since the 1950s. More than one third of species are considered to be threatened with extinction and over one hundred and twenty are believed to have become extinct since the 1980s. The number of malformations among frogs is on the rise and an emerging fungal disease, chytridiomycosis, has spread around the world. Conservation biologists are working to understand the causes of these problems and to resolve them. Frogs are valued as food by humans and also have many cultural roles in literature, symbolism and religion.".
- Frog thumbnail Anoures.jpg?width=300.
- Frog wikiPageExternalLink amphibiaweb.org.
- Frog wikiPageExternalLink amphibian_sci_1.html.
- Frog wikiPageExternalLink froggy.lbl.gov.
- Frog wikiPageExternalLink frogsdecline.html.
- Frog wikiPageExternalLink Amphibians.
- Frog wikiPageExternalLink 429523.
- Frog wikiPageExternalLink www.midwestfrogs.com.
- Frog wikiPageExternalLink shfrsnd.html.
- Frog wikiPageExternalLink researchers-pinpoint-sour.
- Frog wikiPageExternalLink frogs.
- Frog wikiPageExternalLink time-lapse-part-5-frog-spawn.
- Frog wikiPageID "38498".
- Frog wikiPageLength "154908".
- Frog wikiPageOutDegree "610".
- Frog wikiPageRevisionID "683672083".
- Frog wikiPageWikiLink 1995_in_paleontology.
- Frog wikiPageWikiLink Acosmanura.
- Frog wikiPageWikiLink Acris_crepitans.
- Frog wikiPageWikiLink Aestivation.
- Frog wikiPageWikiLink African_clawed_frog.
- Frog wikiPageWikiLink African_dwarf_frog.
- Frog wikiPageWikiLink Agalychnis_callidryas.
- Frog wikiPageWikiLink Aglaioanura.
- Frog wikiPageWikiLink Ain.
- Frog wikiPageWikiLink Alga.
- Frog wikiPageWikiLink Algae.
- Frog wikiPageWikiLink Alkaloid.
- Frog wikiPageWikiLink Allobates_zaparo.
- Frog wikiPageWikiLink Allodapanura.
- Frog wikiPageWikiLink Alytidae.
- Frog wikiPageWikiLink American_bullfrog.
- Frog wikiPageWikiLink American_spadefoot_toad.
- Frog wikiPageWikiLink American_toad.
- Frog wikiPageWikiLink Ammonia.
- Frog wikiPageWikiLink Amniote.
- Frog wikiPageWikiLink Amniotes.
- Frog wikiPageWikiLink Amphibian.
- Frog wikiPageWikiLink Amplexus.
- Frog wikiPageWikiLink Anatomical_terms_of_location.
- Frog wikiPageWikiLink Ancient_Greek.
- Frog wikiPageWikiLink Animal_communication.
- Frog wikiPageWikiLink Animal_testing.
- Frog wikiPageWikiLink Animal_welfare.
- Frog wikiPageWikiLink Ankle_bone.
- Frog wikiPageWikiLink Annelid.
- Frog wikiPageWikiLink Anomocoela.
- Frog wikiPageWikiLink Antarctica.
- Frog wikiPageWikiLink Aorta.
- Frog wikiPageWikiLink Aposematism.
- Frog wikiPageWikiLink Aquaculture.
- Frog wikiPageWikiLink Aquatic_locomotion.
- Frog wikiPageWikiLink Archaeobatrachia.
- Frog wikiPageWikiLink Arctic_Circle.
- Frog wikiPageWikiLink Aristophanes.
- Frog wikiPageWikiLink Arizona.
- Frog wikiPageWikiLink Arthroleptidae.
- Frog wikiPageWikiLink Arthropod.
- Frog wikiPageWikiLink Ascaphus_truei.
- Frog wikiPageWikiLink Athesphatanura.
- Frog wikiPageWikiLink Atrium_(anatomy).
- Frog wikiPageWikiLink Atrium_(heart).
- Frog wikiPageWikiLink Australia.
- Frog wikiPageWikiLink Australian_green_tree_frog.
- Frog wikiPageWikiLink Batesian_mimicry.
- Frog wikiPageWikiLink Batrachotoxin.
- Frog wikiPageWikiLink Beak.
- Frog wikiPageWikiLink Binocular_vision.
- Frog wikiPageWikiLink Biogeography.
- Frog wikiPageWikiLink Biological_classification.
- Frog wikiPageWikiLink Biological_life_cycle.
- Frog wikiPageWikiLink Biological_pest_control.
- Frog wikiPageWikiLink Biological_specificity.
- Frog wikiPageWikiLink Biological_system.
- Frog wikiPageWikiLink Biomass_(ecology).
- Frog wikiPageWikiLink Black-legged_dart_frog.
- Frog wikiPageWikiLink Blarina_brevicauda.
- Frog wikiPageWikiLink Blowgun.
- Frog wikiPageWikiLink Body_plan.
- Frog wikiPageWikiLink Bombianura.
- Frog wikiPageWikiLink Bombinatoridae.
- Frog wikiPageWikiLink Bone.
- Frog wikiPageWikiLink Bornean_flat-headed_frog.
- Frog wikiPageWikiLink Boundary_friction.
- Frog wikiPageWikiLink Breeding_season.
- Frog wikiPageWikiLink Brevicipitidae.
- Frog wikiPageWikiLink British_Library_Sound_Archive.
- Frog wikiPageWikiLink Bromeliaceae.
- Frog wikiPageWikiLink Bromeliad.
- Frog wikiPageWikiLink Buccal_pumping.
- Frog wikiPageWikiLink Bufo_americanus.
- Frog wikiPageWikiLink Bufo_fowleri.
- Frog wikiPageWikiLink Bufonidae.
- Frog wikiPageWikiLink Bufotenin.
- Frog wikiPageWikiLink Bufotoxin.
- Frog wikiPageWikiLink Burrow.
- Frog wikiPageWikiLink Caecilian.
- Frog wikiPageWikiLink Cajun.
- Frog wikiPageWikiLink Cameroon.