This is Poo-chi, from Sega Toys and distributed in USA by Tiger Toys.
Some wiki info (https://en.wikipedia.org/wiki/Poo-Chi):
Sega Toys' Poo-Chi hit markets on 1 April 2000, with Hasbro's Tiger Electronics distributing the toy in all countries other than Japan and Korea. Retailing at a price of 3,980 yen (then the equivalent of US$38) in Japan and $24.99 in the United States, the toy offered significantly cheaper competition to the AIBO's prices of up to 250,000 yen (then US$2,400).