Macaws fly overhead and bats swirl inside the earth cavities in which hunting tribes once found shelter.
It forms green mats in caves, holes in wood or earth, or cavities between rocks or under tree roots.
The model is employed to model the Earth-ionosphere cavity, thus enabling a study of the natural electromagnetic phenomena that occur in it.
Besides the well-known global excitation of the Earth-ionosphere cavity Schumann resonances (SR) in the ELF frequency band of several tens Hz (Nickolaenko and Hayakawa, 2002), local lightning transients and large ULF noise enhancement in the frequency range of several Hz in the thunderstorm proximity were observed (Fraser-Smith, 1993).
They are built in holes in tree cavities, earth banks, rocky slopes, and within man-made structures or the nests of birds of prey.
Sinkholes are hidden cavities in the earth that open up without warning.
Absent cape and crown and royal retinue, he will wander the earth in search of those joyless cavities still crying out for their king.
Hopefully whoever does inhale illegal wolverine sperm into their sinus cavity this year has a name that nobody else on earth also has, like Usain Bolt or Googy Whimper (not a real name).
De Groat's sinkhole served as a reminder of the difficulties involved in an ongoing operation that required moving large quantities of earth around an inhabited site that was pocked with barely concealed cavities which had never been charted all that well to begin with.
They place us inside the body, underground, before a microscope and high above the earth, evoking such things as pelvises, internal organs or little stone-filled cavities.
They are secondary cavity nesters and typically nest in large cavities in trees, cliffs and earth banks, but readily use artificial nest boxes.
