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Small Mammals
| Question | Answer |
|---|---|
| Characteristics of mammals | Fur Lactation Vertebrates Warm blooded or Endothermic Give birth to live young (some exceptions) |
| Nocturnal | Active at night. Ex: Bats |
| Diurnal | Active during the day. Ex: Humans! |
| Crepuscular | Active during the twilight hours of dawn and dusk. Ex: Deer. |
| Altricial Young | Young born unable to move around on their own, basically helpless. Usually short gestation period |
| What animals have altricial young? | Fast breeding prolific animals tend to have this type |
| What kind of animals have altricial young? | Hamsters, mice, rabbits, etc… |
| Precocial Young | More alert and mobile following birth Longer gestation periods |
| What kind of animals have precocial young? | Guinea pigs, chinchillas |
| Orders to know for small animals | Rodentia – “Gnawing mammals.” Rodents. Lagomorpha – Rabbits and Hares. Carnivora – “Meat eaters” or carnivores. Ferret, cats, etc… Eulipotyphla – “Insect eaters.” Hedgehogs. |
| Many carnivores have special adaptations that enable them to capture prey such as ___________________ | speed, agility, sharp claws, and specialized teeth. |
| Most carnivores have acute senses of __________ that enable them to detect and capture prey. | sight, smell and hearing |
| What examples are there of carnivores | Domestic examples include ferrets, cats, and dogs. |
| Rodents are the ______________ that includes____________ | Largest group of mammals; rats, mice, beavers, squirrels, etc… |
| What type of teeth do rodents have? | one pair of upper incisors and lower incisors |
| Characteristics of rodent teeth | the chisel-shaped teeth at the front of the mouth grow continuously throughout their life Always have to have something to chew to keep worn down |
| Insectivores are covered with __________, although some, like the _____________ | smooth fur; hedgehogs, have spines (also made of keratin). |
| Insectivores have an ________________ which may be long and flexible, or short and stout. | excellent sense of smell that is assisted by their snouts, |
| Skulls are ______________ | small, long, and flat. |
| Tiny, often ______________, but a terrific sense of ___________ | unnoticeable ears and eyes; hearing. Eyesight is usually poor |
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