Mammals have demonstrated grief-like states, especially between a mother and her offspring. She will often stay close to her dead offspring for short periods of time and may investigate the reasons for the baby's non-response. For example, some deer will often sniff, poke, and look at its lifeless fawn before realising it is dead and leaving it to rejoin the herd shortly afterwards. Other animals, such as a lioness, will pick up its cub in its mouth and place it somewhere else before abandoning it.