Reptiles (e.g., snakes), amphibians (e.g., poison arrow frogs), and fish (e.g., stonefish) are often venomous or poisonous. Mammals that are venomous are not as common, but they do exist. Teeth dated at 60 million years old from two extinct species, the shrew-like Bisonalveus browni and another unidentified mammal, show grooves indicative of a venomous bite. This had prompted suggestions that venomous mammals were once more common. It has also been suggested by Mark Dufton of the University of Strathclyde that modern animals do not need venom as they are smart and effective enough to kill quickly with tooth or claw, whereas venom, no matter how sophisticated, takes time. Indeed, the venomous solenodon is now being driven from its native habitat by introduced dogs, cats, and mongooses. Orders  Crocodilia - Crocodilians scary crocodiles. ... For other uses, see Amphibian (disambiguation). ... Atlantic herring, Clupea harengus: one of the most abundant species of fish in the world. ... It has been suggested that Snake poison be merged into this article or section. ... Orders Subclass Monotremata Monotremata Subclass Marsupialia Didelphimorphia Paucituberculata Microbiotheria Dasyuromorphia Peramelemorphia Notoryctemorphia Diprotodontia Subclass Placentalia Xenarthra Dermoptera Desmostylia Scandentia Primates Rodentia Lagomorpha Insectivora Chiroptera Pholidota Carnivora Perissodactyla Artiodactyla Cetacea Afrosoricida Macroscelidea Tubulidentata Hyracoidea Proboscidea Sirenia The mammals are the class of vertebrate animals primarily characterized by the presence of mammary... Bisonalveus browni was discovered in 1956 in Alberta, Canada. ... The University of Strathclyde is a university in Glasgow, Scotland, which originated as Andersons Institution in 1796. ... Genera Atopogale Solenodon Species Atopogale cubana Solenodon paradoxus Solenodon marcanoi (extinct) The family Solenodontidae are nocturnal, burrowing, insectivorous mammals. ...

Listed below are mammals that are venomous and those that use poisonous or noxious chemicals in some form.

Venomous

Cuban Solenodon (Atopogale cubana) & Haitian Solenodon (Solenodon paradoxus): Binomial name Atopogale cubana (Peters, 1861) The Cuban Solenodon (known as the Almiqui in Cuba) (Atopogale cubana, Solenodon cubanus) is an insectivore native to Cuba. ...

Solenodons look similar to big hedgehogs with no coat of spines. They both have venomous bites; the venom is delivered from modified salivary glands via grooves in their second lower incisors. Genera Atopogale Solenodon Species Atopogale cubana Solenodon paradoxus Solenodon marcanoi (extinct) The family Solenodontidae are nocturnal, burrowing, insectivorous mammals. ...

Platypus (Ornithorhyncus anatinus): Binomial name Ornithorhynchus anatinus (Shaw, 1799) The Platypus (Ornithorhynchus anatinus) is a small, half-aquatic mammal endemic to the eastern part of Australia, and one of the five extant species of monotremes, the only mammals that lay eggs instead of giving birth to live young (the other four are echidnas). ... Binomial name Ornithorhynchus anatinus Shaw, 1799 The platypus (Ornithorhynchus anatinus) is a small, semi-aquatic mammal endemic to the eastern part of Australia, and one of the four extant monotremes, the only mammals that lay eggs instead of giving birth to live young (the other three are echidnas). ...

Males have a venomous spur on their hind legs. Echidnas, the other monotremes, have spurs but no functional venom glands.

Eurasian water shrew (Neomys fodiens): Binomial name Neomys fodiens (Pennant, 1771) The Eurasian Water Shrew, known in British English as the Water Shrew, is a relatively large shrew, up to 100 mm in length, with a tail up to three-quarters as long again. ... Binomial name Neomys fodiens (Pennant, 1771) The Eurasian Water Shrew, known in British English as the Water Shrew, is a relatively large shrew, up to 100 mm in length, with a tail up to three-quarters as long again. ...

Capable of delivering a venomous bite.

Northern Short-tailed Shrew (Blarina brevicauda): Binomial name Blarina brevicauda (Say, 1823) The Northern Short-tailed Shrew, Blarina brevicauda, is a large shrew found in central and eastern North America from southern Saskatchewan to Atlantic Canada and south to Nebraska and Georgia. ... Binomial name Blarina brevicauda (Say, 1823) The Northern Short-tailed Shrew, Blarina brevicauda, is a large shrew found in central and eastern North America from southern Saskatchewan to Atlantic Canada and south to Nebraska and Georgia. ...

Capable of delivering a venomous bite.

Southern Short-tailed Shrew (Blarina carolinensis) & Elliot's Short-tailed Shrew (Blarina hylophaga): Binomial name Blarina carolinensis (Bachman, 1837) The Southern short-tailed shrew (Blarina carolinensis) is a small, gray, short-tailed mammal as the name implies. ... Binomial name Blarina carolinensis (Bachman, 1837) The Southern short-tailed shrew (Blarina carolinensis) is a small, gray, short-tailed mammal as the name implies. ... The Elliots short-tailed shrews are are a specimen of shrew found only in Texas. ... The Elliots short-tailed shrew(Blarina Hylophaga) is a small, slate grey, short-tailed species of shrew. ...

Possibly has a venomous bite.

Venomous / Poisonous

Slow loris (Nycticebus coucang): Species Nycticebus coucang Nycticebus bengalensis Nycticebus pygmaeus The slow lorises are three species of loris and are classified as the genus Nycticebus. ... [[{{{diversity_link}}}|Diversity]] {{{diversity}}} Binomial name Nycticebus coucang (Boddaert, 1785) Trinomial name {{{trinomial}}} Type Species {{{type_species}}} {{{subdivision_ranks}}} [[Image:{{{range_map}}}|{{{range_map_width}}}|]] Synonyms {{{synonyms}}} The Sunda Loris (Nycticebus coucang), or Bengal Slow Loris, is a slow loris. ...

Glands on the inside of their elbows secrete a toxin that smells like sweaty socks. They cover their babies in the toxin to protect them from predators, and put it in their mouths to give themselves a venomous bite, delivering the toxin via their lower incisors.

Chemical defence

Skunks (Family Mephitidae): Genera Mephitis Spilogale Conepatus The skunks or Mephitidae are a family of medium-sized mammals, typically black-and-white-furred, belonging to the order Carnivora. ... Genera Mephitis Spilogale Conepatus The skunks or Mephitidae are a family of medium-sized mammals, typically black-and-white-furred, belonging to the order Carnivora. ...

Skunks can eject a noxious fluid from glands near their anus. It is not only foul smelling, but can cause skin irritation and, if it gets in the eyes, temporary blindness. Male Anatomy This article is about the bodily orifice. ... This article refers to the sight organ. ... Blindness can be defined physiologically as the condition of lacking visual perception. ...

External links

• Shrew handbook
• Slow Loris Research by a toxinologist - includes photos.