The brainstem consists of the midbrain, medulla oblongata, and the pons. Credit: SEER Training Modules/ U. S. National Institutes of Health, National Cancer Institute. Brainstem: The brainstem is the region of the brain that connects the cerebrum with the spinal cord.It consists of the midbrain, medulla oblongata, and the pons. Motor and sensory neurons travel through the brainstem allowing for the relay of signals between the brain and the spinal cord.he brainstem consists of the midbrain, medulla oblongata, and the pons. Credit: SEER Training Modules/ U. S. National Institutes of Health, National Cancer Institute. Brainstem: The brainstem is the region of the brain that connects the cerebrum with the spinal cord.
The snowy owl and many other types of owls are endangered. Most owls are endangered except for a few. There are no species of endangered owl in North America. Below is the official status for NA owls, by species. Although some local populations of these species are in some trouble (i.e., northern spotted owl) by no means are most owl species endangered.
In flight, snowy owls generally cruise low to the ground. Once they spot their prey, they approach it from the air, and snatch it up using the large, sharp talons, or claws, on their feet. Most owls sleep during the day and hunt at night, but the snowy owl is active during the day, especially in the summertime. They tend to be most active at dawn and dusk. Snowy owl pairs usually mate for life. Female snowy owls lay from 3 to 11 eggs at a time, in a nest built on the ground. When there is plenty of food available, snowy owls tend to lay more eggs than when food is scarce. Lemmings make up the main part of the snowy owls' diet, and lemming population numbers rise and fall naturally.