There are 12 awards you can earn for original Zoo Tycoon and an extra 6 for Dino Digs.

Excellence in Exhibit Design: Silver Plaque
Create an exhibit with a suitability rating of at least 90%

Excellence in Exhibit Design: Gold Plaque
Create an exhibit with a suitability rating of at least 99%
Reward $15,000

Most Popular Zoo: Silver Certificate
Have 500 guests in your zoo

Most Popular Zoo: Gold Certificate
Have 1000 guests in your zoo
Reward $25,000

Best Zoo: Silver Trophy
Obtain a Zoo Rating of 90

Best Zoo: Gold Trophy
Obtain a Zoo Rating of 95
Reward $25,000

Highest Customer Satisfaction: Blue Ribbon
Achieve a guest happiness of 95
Reward $25,000

Quality Animal Care: Blue Ribbon
Achieve an animal happiness of 98 (6 months must have passed)
Reward $5,000

Diverse Species: Silver Plaque
Have at least 10 different animal species in your zoo

Diverse Species: Gold Plaque
Have at least 30 different animal species in your zoo
Reward $30,000

Highest Quality Exhibits: Silver Certificate
Have 10 or more exhibits with suitability ratings of 80 or higher

Highest Quality Exhibits: Gold Certificate
Have 25 or more exhibits with suitability ratings of 85 or higher
Reward $40,000

Excellence in Dinosaur Exhibit Design: Gold Cup
Exhibit at least 3 dinosaurs in suitable exhibits

Complete Ice Age Zoo: Gold Mammoth
Exhibit all 4 ice age animals in your zoo

Quality Dinosaur Care: Blue Ribbon
Exhibit at least 10 dinosaurs in suitable exhibits in your zoo
Reward $50,000

Tyrannosaurus Rex Egg: Gold Rex
Have a T-Rex egg laid in your zoo
Reward $100,000

Outstanding Animal Health Plaque
Have less than 3 sick animals in your zoo at the end of the first year