OL PEJETA, Kenya (AP) -- Patrick Muriithi has some common parenting concerns: how to stop Max from sneaking out at night, whether it's OK to leave him at home alone, and an older woman who has been milling around with a come-hither look.

Ranger Patrick Muriithi walks next to Max in the Ol Pejeta Conservancy in Kenya last month.
But Max is a 2-ton adolescent rhino -- which makes the ranger's job a little harder as he shepherds his charge around the Kenyan savannah.
"To me, he's like my baby," Muriithi explains. "He sleeps next to our house ... Even if I'm going out I have to make sure I leave my radio on so I thinks I am in the house."
The orphan is one of only 15,000 endangered white rhinos left in the world, driven toward extinction by an illegal trade in rhino horn used for aphrodisiacs in China and dagger handles in the Middle East.
Ol Pejeta, the 90,000-acre conservancy where Max lives, recently had three attempted poaching attacks on its rhinos in two weeks. For that reason, four armed rangers guard Max while he sleeps under a wooden roof, his breath occasionally stirring a string of laundry on the line.
This week's Red List, an index of threatened species annually published by the International Union for Conservation of Nature, indicates 25 percent of wild mammal species are at risk of extinction worldwide.
Most of the threats come from loss of habitat, so making sure Max has room to roam also helps out his smaller neighbors.
"Rhinos are what conservationists call an umbrella species," said Richard Vigne, the chief executive officer of Ol Pejeta.
"Preserving big animals like rhinos and elephants means a lot of habitat has to be protected, which also helps preserve smaller species that may be in danger."
When Max first arrived from a neighboring reserve, Muriithi and his colleague Charles Mucheke won his trust by feeding him nearly 3 gallons of milk three times a day. Now the 3-year-old walks around 6 miles a day to graze.
Muriithi and Mucheke walk beside him, armed only with a large stick and some explosive charges which make a large bang when ignited.
Mucheke remembered the day they were charged by the dominant bull rhino in the area, who was angered at Max's presence.
"He came at us, but we just used the flash," recalled Mucheke.
The explosives can also be used to frighten away the prides of lions that lounge in the long grasses -- or Susan, the older female rhinoceros that has been sniffing around Max looking for a mate.
Muriithi says Susan has managed to sneak within about 5 yards of Max before he takes off, spooked by her larger size. He's currently only half his adult body weight and will take another three or four years to mature.
"He looks big but he's very young ... not ready to have a girlfriend," laughs Muriithi.
For now, the tall rangers and their 2-ton son are a big draw at the conservancy.
"I've never seen people touching a wild rhino," said British tourist Deacon Smith. "They're usually moving in the opposite direction -- quickly."
Copyright 2008 The Associated Press. All rights reserved.This material may not be published, broadcast, rewritten, or redistributed.
All About Endangered Species • Kenya

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