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Cripsis, mimicry and aposematic

The crypsis or camouflage is a phenomenon whereby an animal has adapted to go unnoticed. That is, it camouflages with the environment, because it uses similar colors to the surrounding natural elements, patterns of colors that hide its outline, to stand still, etc.

mimicry, however, is the ability of certain animals have to look to others around. The purpose of mimicry may be the crypsis, pass unnoticed by predators and the survival.

The opposite is aposematic: Some organizations have very striking features to understand that predators are dangerous. For example, the coral snake has red, black and yellow showy. Another example is the bees or wasps, with their colors warn that dangerous.

The aposematic is used by other animals, there is a type of camouflage called Batesian mimicry, where harmless species taken the appearance of another dangerous, thus gaining an advantage defensively, as the false coral, or flies that look like bees or wasps.

For example, this kind Syrphidae fly or flower fly, is much like a bee.

animal camouflage photos:

(In this picture, but not enough, also there is an animal, but we have to look good)

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Ants slave animal camouflage Sierra Nevada giant Varano

Rossomyrmex minuchae

In ants, rather than "slave" refers to "dulosis" dulóticas species are those that can not survive without the help of other ant species, which are used as laborers. For example, in the genus Polyergus, ants never dig their own nests, nor can they get food, He was not even care for their young. To do so entirely dependent on the slaves.

A colony of ants dulóticas starts when the young queen invades a host colony (which is the slave), killing the queen. The new queen is installed is accepted by the rest of the colony. After that, it forms a mixed colony, which is maintained by periodic attacks of neighboring nests. The slave ants invade the colonies of other species and steal the larvae and pupae. Then raise them as workers for their own colonies.

An example of this is to Proformica Rossomyrmex attacks in Sierra Nevada. When the scouts of the first kind Proformica find a nest, returning to its nest to carry on their partners. For this, the lift and taken to the place where the nest of another species, which seek to attack. When ants nest that will be targeted to detect intruders, closed all entrances with dirt, but this does not prevent the attackers to desist. After several hours of work, depart the earth and get into the nest. Once there, kill the workers and steal the eggs, larvae and pupae and carry them to their nest, where the breed slave laborers with native breeding colony (the daughters of the queen that was installed in the nest .) When they grow up, will also workers, for a colony that is not yours.

Dato: Recently we have discovered that ants slaves who are looked after by to the pupae of the slave, may rebel and kill 80% of pups in their care. This may be a cause of reducing the number of attacks on settlements of its kind.

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filipino

Varanus bitatawa

The discovery of the new species was announced on April 7, 2010, but has a story interesting

In 2001, he was in a photo taken by a group of hunters a huge black and yellow lizard had not seen before. It was in the Sierra Madre Luzon Island, Philippines. Following these pictures, a group of researchers went to the area and in 2009 found an adult male, need to sequence their DNA and compare it with other species of the same island.

Fact: the large adult male was found because it got caught in a trap of indigenous hunters. These tribes, called Agta and Llongote, decades had been hunting for the reptile to eat his flesh and bitatawa called him, so he took this name.

is related to the Komodo dragon (Varanus genus also), but the Philippine monitor lizard eats fruit and snails. Two meters and lives in trees in forested areas.

is unknown condition, but believes they should be very few few copies. It is not known as an animal as large and as striking has gone unnoticed all this time.

Scientists hope that thanks to the discovery of this rare vertebrate (it is becoming less common to find such large animals), to protect the area and therefore all other species living in the same habitat and can also be endangered.