Lab 1 - Methods

This live trap is used for bats

Mist net

This live trap is used for small mammals

Sherman Live Trap

This kill trap is used for large mammals

Conibear trap

This kill trap is used for burrows and dens

Harpoon mole trap

This kill trap is used for burrows and dens

Macabee gopher trap

This kill trap is used for large rats

Museum special

This kill trap is used for small mice

Victor snap trap

2 types of hair growth patterns

1. Angora

2. Definitive

______ hair exhibits continuous growth (Ex: human head hair)

Angora

_______ hair reaches a definitive length and is shed periodically (Ex: fur, eyelashes)

Definitive

3 types of hair

1. Vibrissae

2. Guard hair

3. Underfur

________ or whiskers, are long stiff hairs that serve as tactile receptors

Vibrissae

________ ____ is a hair type that functions as protection and waterproofing, sometimes modified into spines

Guard hair

_______ is a hair type that consists of a short, dense undercoat and can function as insulation

Underfur

_________ ______ produce milk to nourish young and are found in all mammals

Mammary glands

_______ are present in Therian mammals but NOT in Prototherians (Platypus/Echidna)
(knowt wouldnt let me finish the full word)

Nips

The ________ ______ separates abdominal (guts) and thoracic (heart/lungs) cavities

Muscular diaphragm

Mammals have a _ chambered heart

4

Humans have a ____ aortic arch

Left

A _______ has teeth that are all the same size and structure (Ex: Dolphin)

Homodont

A ________ have multiple types of teeth of different sizes and structures. (Ex: most mammals)

Heterodont

4 basic types of teeth for heterodonts

1. Incisor (front)

2. Canine (sharp teeth)

3. Premolar (smaller molars between canine and molars)

4. Molar (large in the back)

A ________ is a gap between teeth (Ex: Beaver, Horses, Rabbits)

Diastema

A ___________ have one set of teeth (Ex: Hamster)

Monophyodont

A _______ have two sets of teeth (Ex: Humans → baby teeth)

Diphyodont

2 molar crown types

1. Hypsodont

2. Brachydont

__________ are high crowned molars for mammals that eat abrasive foods (Ex: Horses)

Hypsodont

_________ are low crowned molars (Ex: Humans)

5 molar shapes

1. Bunodont

2. Lophodont

3. Selenodont

4. Dilambdodont

5. Secodont

________ is a crown pattern with low, cone shaped or rounded cusps.

• Omnivores

Bunodont

_______ is a crown pattern with transverse cusps with intervening valleys, grinding teeth

• Herbivores

Lophodont

_______ is a crown pattern of crescent shaped cusps. grinding teeth

• Herbivores

Selenodont

__________ is a crown pattern shaped like a W and found in bats

Dilambdont

________ is a crown pattern whre cusps are reduced to 2 major cusps that form a cutting edge

• Carnivores

Secodont

A _______ ___ is a specialized secodont molar found only in Order Carnivora; blade like teeth that cut like scissors (last upper premolar and 1st lower molar)

Carnassial pair