Some species in the Plethodontidae have a weak zone at the base of the tail and if the salamander is in danger or if the tail is grabbed by a predator, it breaks off, a process known as autotomy.

Some species complete their development inside the egg and hatch directly into small frogs.

Some species are carnivorous at the tadpole stage, eating insects, smaller tadpoles and fish.

Some members of the genera Ambystoma and Dicamptodon have larvae that never fully develop into the adult form but this varies with species and with populations.

Some species of salamander emit a quiet squeak or yelp if attacked.

Some unicellular species rely entirely on external energy sources and have limited or no photosynthetic apparatus.

Some of the species of Allium are important food plants for example onions ( Allium cepa ), chives ( A. schoenoprasum ), garlic ( A. sativum and A. scordoprasum ), and leeks ( A. porrum ).

Some endangered species in British Columbia are: Vancouver Island marmot, Spotted Owl, American White Pelican, and badgers.

Some birds, especially corvids and parrots, are among the most intelligent animal species ; a number of bird species have been observed manufacturing and using tools, and many social species exhibit cultural transmission of knowledge across generations.

Some species, particularly songbirds and parrots, are popular as pets.

Some aspects of brain structure are common to almost the entire range of animals species ; others distinguish " advanced " brains from more primitive ones, or distinguish vertebrates from invertebrates.

Some suggest Neanderthal, Homo erectus, or Homo heidelbergensis to be the creature, but no remains of any of those species have been found in the Americas.

Some species of mold produce alpha-galactosidase, an anti-oligosaccharide enzyme, which humans can take to facilitate digestion of oligosaccharides in the small intestine.

Some species, such as the Lesser Dwarf Lemur, store fat at the hind legs and the base of the tail and hibernate.

Some rare species are viviparous.

Some cosmologists have proposed that Big Bang nucleosynthesis suggests there is a fourth " sterile " species of neutrino.

Some species and genera had a very wide distribution with only minor variations.

Some botanical species are trees having similar foliage to the Lauraceae due to convergent evolution.

Some of the country's most endangered species are the Harpy eagle, the Giant anteater, the Golden toad and the Jaguar.

* Some Dracocephalum, Glechoma and Calamintha species were formerly classified in Nepeta.

* Some crustaceans, such as the coconut crab, though mainly omnivorous, will prey on turtle hatchlings, smaller crabs species, rats, and carrion

Some species form packs or live in small family groups depending on the circumstances, including the type of available food.

Some canid species have also been trapped and hunted for their fur and, especially the gray wolf and the red fox, for sport.

Some fire departments also use a converted bus as a command post, while those in cold climates might retain a bus as a heated shelter at fire scenes.

Some official bodies have adopted the proposed Sibley-Ahlquist taxonomy almost entirely, however a more common approach worldwide has been to retain the traditional groupings, and modify rather than replace them in the light of new evidence as it comes to hand.

Some aircraft, the Panavia Tornado for example, retain a very basic hydro-mechanical backup system for limited flight control capability on losing electrical power, in the case of the Tornado this allows rudimentary control of the stabilators only for pitch and roll axis movements.

Some ornithologists still feel it is more appropriate to retain the species in the genus Alca, however.

Some places may even retain " island " in their names for historical reasons after being connected to a larger landmass by a wide land bridge, such as Coney Island.

Some Orthodox churches have adopted the Revised Julian calendar for the observance of fixed feasts, while other Orthodox churches retain the Julian calendar for all purposes.

Some leading Conservatives ( e. g. Chancellor Ken Clarke ) favoured joining and insisted that Britain retain a completely free choice, whilst increasing numbers of others expressed their reluctance to join.

Some metals form a barrier layer of oxide on their surface which cannot be penetrated by further oxygen molecules and thus retain their shiny appearance and good conductivity for many decades ( like aluminium, magnesium, some steels, and titanium ).

Some New Religious Movements, especially those that have disassociated themselves from the Catholic Church yet retain a Catholic hierarchical framework, will use the designation " pope " for a movement's founder or current leader.

Some paramagnetic materials retain spin disorder at absolute zero, meaning they are paramagnetic in the ground state.

Some forms of polyandry appear to be associated with a perceived need to retain aristocratic titles or agricultural lands within kin groups, and / or because of the frequent absence, for long periods, of a man from the household.

Some keyboards, such as the Kinesis, retain the QWERTY layout but arrange the keys in vertical columns, to reduce unnecessary lateral finger motion.

Some portions of the forest still retain many very old oaks, especially in the portion known as the Dukeries, south of the town of Worksop, which was so called because it used to contain five ducal residences in proximity to one another.

Some modern Church uses also preserve the idea of an eight-day period, starting and finishing on the same day of the week, and retain the name " octave " for them ; for example, many churches observe an annual " Octave of Prayer for Christian Unity " on 18 – 25 January or in the week that begins with Pentecost Sunday.

Some time thereafter, by the middle of the 18th century, / e / and / we / came to be pronounced as in modern Japanese, although some regions retain the pronunciation.

Some amphibans retain the external larval gills in adulthood, the complex internal gill system as seen in fish apparently being irrevocably lost very early in the evolution of tetrapods.

Some meads retain some measure of the sweetness of the original honey, and some may even be considered as dessert wines.

Some species retain gill rakers.

Some stationary forms retain the Fellgett multiplex advantage, and their use in the spectral region where detector noise limits apply is similar to the scanning forms of the FTS.

Some countries retain laws forbidding defamation of religious belief.

Some retain laws forbidding all forms of blasphemy ( e. g., Germany where, in 2006, Manfred van H. was convicted of blasphemy against Islam ).

Some individuals and religious groups, for example, retain beliefs or practices which involve acts contrary to established law, such as the use of cannabis by members of the Rastafari movement, the religious use of eagle feathers by non-Native Americans ( contrary to the eagle feather law, 50 CFR 22 ), or the practice of polygamy amongst Mormons in the 19th century.

Some newly founded prefecture-level cities have chosen to retain the original name of League ( Hulunbuir, Bayannur, and Ulanqab ), some have adopted the Chinese name of their primate city ( Chifeng, Tongliao ), and one League, Yekejuu, simply renamed itself Ordos.

Some populations do retain the enzyme and can consume milk in adulthood without trouble.