Prosimians

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Teeth number

36 (except aye-aye)

Where do most lemurs live?

along coast of Madagascar

Dental formula

incisors-canine-premolar-molar

Type of nose

strepsirrhine (wet nose) vomernasal

Prosimian features of tarsier (6)

nocturnal today solitary, pair-living grooming claw multiple nipples bicornuate uterus

How do they hang and leap from trees?

vertically

Day-active and then went back into the night

- tarsier - owl monkey

Predators

-fossa (cat-like) -yellow-billed kite (bird) -striped civet (fox-like) -ground boa (snake) takeaway: predation is a big force of natural selection and evolving bigger for walking around in the day

Lemur general facts

-seasonal breeders- have babies when it rains (the monsoons)= the easiest, best for mom and babies (November-January) -scent-marking behavior, olfactory investigation is big -need high energy food sources since so small= BUGS yummm ----also eat flowers, scrape a tree for sap, fruit, figs, eggs, aye-aye: insect grubs and coconuts

Aye-aye

1-0-0-3 thin third finger used to grab bugs in tree/into coconuts

Dental formula of prosimians

2-1-3-3 = 9X4 = 36

Where do prosimians live?

Asia, Africa, SA

Slow Loris distribution

Indonesia (4 species)

Tarsier

Indonesia-Philippines freakin huge eyes because no tapetum long lower legs- tarsier bone

Largest Lemur

Indri and Sifaka

Infraorder taxonomy

Lemuriformes: all lemurs Lorisiformes: loris, galago Tarsiformes: all tarsiers

Superfamily taxonomy

Loisoidea: loris potto galago Lemuroidea: lemurs, indri/sifaka, aye-aye Tarsioidea: tarsiers

Solitary foragers

Mouse lemur, galago -females have more overlapping ranges in the forest than the males -when they come back to sleep, two females (two sisters, mother and daughter) might hang out together and sleep in the nest -males are more competitive and territorial and drive out the submissive males --want an area with two or more females Takeaway: Two galagos/mouse lemurs together most likely two females

Slender Loris distribution

Sri Lanka

Big lemur facts

bigger than 1 kg diurnal small groups fruit, sap, leaves females are the boss babies on back

Simian features of tarsier (6)

diurnal ancestors tapetum (no), fovea (yes) no rhinarium (wet nose) single offspring hemochorial placenta (closer to mom)

Potto

faster than slender lorises eats bugs solitary nocturnal

Little Lemur facts

less that 1 kg (2.2 lbs) nocturnal solitary more bugs, sap, fruit, flowers males a little more dominant baby-parking

Sportive Lemur

lives in the lower, left part of Madagascar only very dry Vegetarian-coprophagiaaaaa -sleep during the day (nests, nooks)

Teeth formation

lower teeth forward for grooming, feeding on sap

Smallest prosimian

mouse lemur

Galago

nocturnal forages alone little- high metabolic rate= eats lots of bugs two babies baby parking

Most social prosimian

ring-tailed lemur


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