Prosimians
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
