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The major neurotoxin component of the blue-ringed octopus is a compound originally known as "maculotoxin"; in 1978, this maculotoxin was found to be tetrodotoxin, [17] a neurotoxin also found in pufferfish, rough-skinned newts, and some poison dart frogs; the blue-ringed octopus is the first reported instance in which tetrodotoxin is used as a ...
Many venomous animals, such as this greater blue-ringed octopus (Hapalochlaena lunulata), are brightly colored or can display bright colors to warn potential predators. Numerous animal species naturally produce chemical toxins which are used to kill or incapacitate prey or as a defense against predators.
The following is the list of critically endangered (CR) and endangered (EN) species included in the National List of Threatened Terrestrial Fauna of the Philippines as per DENR Administrative Order 2019-09. [1] The list below currently does not include fauna classified as vulnerable (VU) and other threatened species (OTS).
Mimic octopus showing typical pattern. The mimic octopus was first discovered off the coast of Sulawesi, Indonesia in 1998 on the bottom of a muddy river mouth. [5] [6] It has since been found to inhabit the Indo-Pacific, ranging from the Red Sea and Gulf of Oman in the west to New Caledonia in the east, and Gulf of Thailand and the Philippines in the north to the Great Barrier Reef in south.
The greater blue-ringed octopus, despite its vernacular name, is a small octopus whose size does not exceed 10 centimetres (3.9 in), arms included, with an average weight of 80 grams (2.8 oz). Its common name comes from the relatively large size of its blue rings (7 to 8 millimetres [0.28 to 0.31 in] in diameter), which are larger than those of ...
Now a prevalent weed in the Philippines, the plant was introduced in the southern Philippines in the 1960s. [12] It also easily spreads in agricultural land reducing space for edible plants consumed by livestock. Hagonoy itself is poisonous to livestock due to its allelopathic properties. [13] Water Hyacinth (Water lily) Eichornia crassipes [14 ...
The island of Cebu in the Philippines is home to various species of reptiles and amphibians. Supsup, et al. (2016) recorded a total of 13 amphibian species and 63 reptile species. Brachymeles cebuensis is a rare skink endemic to Cebu. Secretive blind snakes such as Malayotyphlops hypogius and Ramphotyhlops cumingii are found on the island as well.
This is a list of threatened plant and animal species in the Philippines as classified by the International Union for Conservation of Nature (IUCN). It includes vulnerable (VU), endangered (EN), critically endangered (CR), and recently extinct (EX) species. It excludes near threatened (NT), data deficient (DD), and prehistoric species. [1]