Deer:
* Family: Cervidae
* Characteristics: Slender build, long legs, antlers (in males), herbivores, typically live in forests and woodlands
* Examples: White-tailed deer, elk, moose, reindeer
Cattle:
* Family: Bovidae
* Characteristics: Stocky build, short legs, horns (in both sexes), herbivores, typically raised on farms and ranches
* Examples: Cows, bulls, steers, buffalo
Key Differences:
* Physical Appearance: Deer are typically smaller and more slender than cattle, with longer legs. Cattle are stockier and have shorter legs.
* Antlers vs. Horns: Deer males have antlers that are shed and regrown annually, while cattle have horns that are permanent.
* Habitat: Deer are typically wild animals living in forests and woodlands, while cattle are typically domesticated animals raised on farms and ranches.
* Domestication: Cattle have been domesticated for thousands of years, while deer are generally wild animals.
In short, while both deer and cattle are herbivores, they are distinct animals with different physical characteristics, habitats, and domestication statuses.