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Aquatic insects have developed freeze tolerance much like their terrestrial counterparts. However, freeze avoidance is not an option for aquatic insects as the presence of ice in their surroundings may cause ice nucleation in their tissues. [15]: 148 Aquatic insects have supercooling points typically around −3º to −7 °C.
Their eyes are either missing or reduced and they have no ocelli (simple eyes). [2] Their closest living relatives are the recently discovered Mantophasmatodea. [3] Most species are less than 3 cm long, the largest being Namkungia magnus. [4] The family has its own order, Grylloblattodea (sometimes considered a suborder of Notoptera [1]). It ...
Freezing of the head and thorax in other insects tends to have adverse effects on neural tissue, so it is not surprising that these protective mechanisms have been observed in certain species, but E. nugatoria is the only insect known to semi-freeze through the winter. By allowing the abdomen to freeze, evaporative water loss is reduced over ...
Tonic immobility can be found in several families of anurans (frogs and toads). [41] In anurans, tonic immobility is demonstrated most often with open eyes and the limbs sprawled and easy to move, but some species keep their eyes closed. [41] Some species also protrude their tongue. [41]
The pre-flight warm-up behavior of a moth. Insect thermoregulation is the process whereby insects maintain body temperatures within certain boundaries.Insects have traditionally been considered as poikilotherms (animals in which body temperature is variable and dependent on ambient temperature) as opposed to being homeothermic (animals that maintain a stable internal body temperature ...
Wētā is a loanword, from the Māori-language word wētā, which refers to this whole group of large insects; some types of wētā have a specific Māori name. [2] In New Zealand English, it is spelled either "weta" or "wētā", although the form with macrons is increasingly common in formal writing, as the Māori word weta (without macrons) instead means "filth or excrement". [3]
That trepidation likely triggered these people to act on the unpleasant feelings they felt in the pit of their stomachs as they shared their personal stories 35 Times People’s Intuition Spotted ...
The scale insect Dactylopius coccus produces the brilliant red-coloured carminic acid to deter predators. Up to 100,000 scale insects need to be collected and processed to make a kilogram (2.2 lbs) of cochineal dye. [89] A similar number of lac bugs are needed to make a kilogram of shellac, a brush-on colourant and wood finish. [90]