Lec 9 Philippine Mammals [Compatibility Mode].pdf

Lec 9 Philippine Mammals [Compatibility Mode].pdf - 1...

Info icon This preview shows pages 1–3. Sign up to view the full content.

1 Philippine Mammals Mammals What are some of the diagnostic features of mammals? •Mammary glands Mammae formula eg. Human 1:0:0 • Hair – homologous to feathers (birds) and scales (reptiles) Functions of hair Thermoregulation, camouflage, defensive structures (spines) • Dentition Heterodont (incisors, canines, premolars and molars) eg. Human 2/2i; 1/1c; 2/2 pm; 3/3 m 2 sets of teeth - polyphyodont milk or deciduous dentition permanent dentition Mammary Gland types Axillary Pectoral Abdominal Inguinal Method of reproduction 1. Prototherians – egg laying (Monotremes) 2. Metatherians – give birth to partially developed embryo (Marsupials) 3. Eutherians – placental mammals Activity patterns of mammals 1. Diurnal- daytime 2. Nocturnal –night time 3. Crepuscular – early morning & late afternoon Mammals tail fluke baleen vs homodont teeth imbricate scales horns vs. antlers ungulate hooves Morphological adaptations
Image of page 1

Info icon This preview has intentionally blurred sections. Sign up to view the full version.

2 Morphological adaptations patagium (bats) with interfemoral membrane patagium (gliding) opposable digits claws & tubercles Megachiroptera - Pteropodidae Chiroptera - Body covered with fur, teeth present, forelimbs modified into true wings extending from 2 nd to 5 th digit Pteropodidae Fruit bats; inter-femoral membrane absent or reduced; tail short; second finger usually with claw; both tragus and anti-tragus absent Megachiroptera Eonycteris robusta Philippine Nectar Bat Eonycteris spelea Cave
Image of page 2
Image of page 3
This is the end of the preview. Sign up to access the rest of the document.

{[ snackBarMessage ]}

What students are saying

  • Left Quote Icon

    As a current student on this bumpy collegiate pathway, I stumbled upon Course Hero, where I can find study resources for nearly all my courses, get online help from tutors 24/7, and even share my old projects, papers, and lecture notes with other students.

    Student Picture

    Kiran Temple University Fox School of Business ‘17, Course Hero Intern

  • Left Quote Icon

    I cannot even describe how much Course Hero helped me this summer. It’s truly become something I can always rely on and help me. In the end, I was not only able to survive summer classes, but I was able to thrive thanks to Course Hero.

    Student Picture

    Dana University of Pennsylvania ‘17, Course Hero Intern

  • Left Quote Icon

    The ability to access any university’s resources through Course Hero proved invaluable in my case. I was behind on Tulane coursework and actually used UCLA’s materials to help me move forward and get everything together on time.

    Student Picture

    Jill Tulane University ‘16, Course Hero Intern