### species:

Smaller specie
* Some smaller species eat worms.
* live in debris and humus.
* tend to be nocturnal, or mostly active at night
  - live fast and die young

Solitary specie
* are often cryptic as both immatures and adults.
* differ from social species.

Songbird specie
* Every songbird species has a distinctly different song, full of rich harmonies.
* Many songbird species breed poorly near highways
  - find food and shelter amongst the tangle of branches and leaves

Specialist specie
* Some specialist species live in a combination of extreme conditions.
* are animals that require very unique resources.

Squid specie
* All squid species crush their prey into tiny pieces using their beak.
* vary greatly in size.

Stickleback specie
* are found in fresh water environments in Europe , Asia and North America
  - in Europe, Asia and North America.
  * An unusual features of sticklebacks is that they have no scales, although some species have bony armour plates. They are related to pipefish and seahorses. Stickleback species are found in fresh water environments in Europe, Asia and North America. They feed on small crustaceans and fish larvae

### species:

Terrestrial specie
* Many terrestrial species feed on plant roots, penetrating the cells and sucking out the contents.
* Most terrestrial species feed upon plant tissue, many upon seeds and fruit.
* Some terrestrial species lack both lungs and gills and perform gas exchange through their skin
  - lungs and breathe exclusively through their skin or oral cavity
* are adapted to survive extreme conditions
  - very easy to grow
+ Amphibian, Caudata: Amphibians
  * Some terrestrial species lack both lungs and gills and perform gas exchange through their skin. Even some species with lungs also respire through the skin in this manner.
+ List of animal phyla, Phyla, Ecdysozoa: Invertebrates :: Lists of animals :: Groups of phyla :: Glossaries
  * 700 species of microscopic animals from damp or aquatic habitats. Terrestrial species are adapted to survive extreme conditions. A minor phylum.

Threatened specie
* Most threatened species live in forests.
* are abundant in parts of their range but are declining in total numbers
  - likely to become endangered in the foreseeable future
  - plants and animals whose numbers are very low or decreasing rapidly
* face an array of stressful conditions.
* have low or declining population numbers.
* means likely to become an endangered species within the foreseeable future.

Tolerant specie
* conjugate the herbicide, rendering it inactive.
* metabolize hexazinone faster than sensitive species.

### species:

Tropical specie
* Many tropical species yield edible fruits.
* Most tropical species live a year or less.
* Some Tropical species can live more than two years.
* Some tropical species bear sharp spines resembling thorns
  - do require controlled heat and humidity though
* Some tropical species have much longer bills
  - neurotoxic venom
  - two or three generations per year
  - lack pigmentation and survive as parasites on other red algae
* are adapted to equal periods of light and dark over the year
  - more brightly colored than species from cooler areas
* burrow in soil.
* exhibit highly specialized ecological roles
* take longer because of the poorer food supply.

Undescribed specie
* Many undescribed species exist, especially in tropical wet forests.
* Most undescribed species are small and occur in soil, tropical rainforests and marine habitats.