### condition | abnormality:

Humpback
* Sing for Their Supper Humpback whales have an interesting way of getting a meal.
* Some humpbacks have a very unusual way of catching their food
  - whitish, oval-shaped scars, which are the marks of parasitic sea lampreys
* also practice a behavior referred to as lunging
  - produce a variety of social sounds made by males and females
  - sing at fairly high frequencies, which further limit the distance their voices carry
* are acrobats of the ocean, breaching and slapping the water
  - almost black in color with white along their flippers and undersides
  - baleen whales which means they filter their food through baleen plates
* are baleen whales, meaning they have no teeth
  - sifting their food through the baleen filtres unlike toothed whales
  - basically black or gray, with a white region on the throat and belly
  - black or gray with white markings on their throats and bellies, flippers and tails
  - both cosmopolitan found in all oceans and endangered
  - cripples
  - curious animals and sometimes approach close to boats
  - curious, and often pop their head up above the waterline to look around
  - easy to tell apart, using the black and white pattern on their tail flukes
  - famous for their songs that they sing
  - found in all the world's oceans
  - generally blackish with white under and at the sides
  - highly migratory
  - mainly black on top and white underneath
  - older, bigger perch which produce meaty fillets
  - the acrobat of the whale world
* are the most acrobatic of whales with many behaviors visible at the surface
  - articulate of all baleen whales
  - underwater crooners
  - very acrobatic whales that sing beautiful, complex songs
* breathe through the blow hole on top of their head.
* can consume a ton a food a day
  - nearly a ton of food in a day's time
* come in four different colors, ranging from white to black to mottled
  - to Hawaii's waters to mate, and to give birth
* eat by filtering food through baleen plates.
* engage in fantastic courtship and mating behavior which can last for hours.
* feed on small schooling fish and krill.
* gather into larger feeding groups and work together to surround and catch prey.
* have a color pattern on the bottom of their tail that is distinct for individuals
  - small dorsal fin toward the flukes
  - only one real predator that anyone knows about - killer whales
  - similar tendencies
* lobtail more when the seas are rough and stormy.
* make up most of the whale population off Massachusetts.
* migrate between northern and southern latitudes in phase with the climactic cycle
  - each year from polar water feeding grounds to tropical water breeding grounds
  - seasonally, spending the summer in high latitudes and the winter in low latitudes
  - to the North
* prefer to live along coasts.
* sieve food from huge volumes of water using specialised fringed mouth-plates.
* sometimes cruise along the coast and can be seen breaching.
* spend the warmer months in cool water and spend the winter in tropical waters.
* spinal curvature
* still inhabit all of the world's oceans.
* swim in pods of three or four as they migrate.
* tend to swim near shore during migration, increasing the likelihood of a sighting.
* use at least two methods of feeding.

### condition | abnormality | humpback:

Male humpback
* position themselves next to females with the untiring desire to copulate.
* serenade females with the longest and most complex songs in the animal kingdom.
* sing the longest and most complex songs of any animal.

Hydrocephalus
* accounts for a large proportion of adult patients with a diagnosis of dementia.
* is an abnormality

### condition | abnormality | hydrocephalus:

Acquired hydrocephalus
* can develop at any age as a result of head trauma or illness
  - occur at any age
* is hydrocephalus that develops after birth.