The Holbrook Explorer

Lion (Panthera leo) - Are inactive 20 hours a day - Around 80% of cubs die before age 2; threats include predators, starvation, and displacement - Have the loudest roar of all cats - Females usually

Bill Hilton Jr. recently returned from Costa Rica on another Operation Rubythroat citizen science expedition.

Since 2001, Fund for Teachers has awarded over $17.8 million in grants to more than 5,000 teachers. In 2013, Kathryn Elkins will take her 10th trip to Costa Rica with Holbrook Travel.

African Elephant (Loxodonta africana) - Largest living terrestrial animal - Have four molars which are replaced six times - Highly intelligent; brain structure and complexity is similar to humans -

In 2009, Bud Cole and his wife Bev traveled to the Galapagos Islands for the first time. "Whenever one ventures off on a travel vacation the expectations for fun and adventure run very high, but how

  Black rhinoceros (Diceros bicornis) - Critically endangered species - Have poor eyesight; rely on hearing and smell - Horns are made of keratin, similar to human fingernails - Life expectancy is 35-