Large mammals are all on the menu here. for one adult tiger, it needs at least 50 deer a year to feed them. reporter: 2022 is the lunar year of the tiger, marking a deadline set in 2010 by 13 countries to double their wild tiger populations. so far, evidence suggests global tiger numbers are on the rise, but their range has continued to decline. she s hopeful for thailand s tigers. for example, right now, we are the biggest home of i indochinese tiger population. reporter: so, while tigers worldwide face an uncertain future, these tigers can relax, at least for now. and let us know what you re