LEARNING LAB 

Hair (aka fur) wool
mohair
Hair (aka fur) wool
mohair

 

Technically, sheep produce wool, angora goats produce mohair, while alpacas and llamas produce hair. The difference?

  • The majority of llama fiber is hollow, which makes it lightweight and gives it insulating properties.

  • Most sheep breeds grow fiber that is not hollow; this is wool.

  • Angora goats produce Mohair, which has scales like wool, but the scales are not fully developed, so mohair does not felt as wool does.

  • Fur is technically the same as hair

Taxonomic 
Classifications

Taxonomic

Classifications 

  • CERVIDAE- The Cervidae family is commonly referred to as the “Deer Family.” A member of this family is called a “cervid.”

  • BOVIDAE- The Bovidae are the biological family of cloven-
    hoofed, ruminant mammals that include bison, buffalo, antelopes,
    wildebeest, impala, gazelles, sheep, goats, muskoxen, and domestic
    cattle. A member of this family is called a bovid.

  • EQUIDAE- Equidae (sometimes known as the horse family) is the
    taxonomic family of horses and related animals, including horses,
    donkeys, and zebras, and many other species known only from fossils. The term equid refers to a member of this family.

  • SUIDAE- Suidae is a family of mammals that are commonly
    called pigs, hogs or boars. In addition to numerous fossil species, 17 species are currently recognized. The term suid refers to any member of this family.

  • DROMAIIDAE- The emu is the sole living member of the family Dromaiidae.

Geology

​Geology 

  • Sea levels were higher during the Late Cretaceous period (65-100 million years ago), so marine waters covered much of the continents.  That's why we find so many shells in Evant.

  • The continents shrank as borders flooded. At its maximum, land covered only about 18 percent of Earth’s surface, compared with approximately 28 percent today.

Horns v. Antlers

Horns vs. Antlers

  •  Horns stay on year round; antlers are seasonal – they grow every spring and shed every winter.  Axis deer's antlers drop on their birthday instead of in relation to seasons (probably because they originated in India where they didn’t have seasonal changes)

  • Boys and girls can both have horns; only males have antlers (except female caribou also have antlers).

  • Members of the bovid family have horns; members of the cervid family have antlers.

  • Horns are a bony core with a keratin cover; antlers are true bone.

  • Horns are never branched and never shed. The horn will continue to grow unless broken or worn down through use. Horns don’t ever grow back if damaged.

  • Horns do not have “velvet”; antlers do. Velvet antlers are hot to the touch, with brushy hair and a waxy feeling coating. The “velvet” is a type of skin, loaded with blood vessels and nerves, that regenerates every year. Because deer shed their antlers annually, they need dense and rapid growth of their antlers to occur every year.

  • Only 3 species have palmated antlers: fallow, caribou (reindeer), and moose.